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Li Y, Tao W, Chen W. Evidence for complexation-induced micro-extension of poly(vinyl alcohol) chains in interphase and amorphous domains from solid-state NMR. SOFT MATTER 2022; 18:8974-8982. [PMID: 36382492 DOI: 10.1039/d2sm01136k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The three-phase structure of poly(vinyl alcohol) (PVA)-iodine complexes was elucidated by solid-state NMR (SSNMR), of which the micro-extension of the PVA segment in the interphase and amorphous domains was directly confirmed. The three-phase structure of the PVA-iodine complex was decomposed by the inverse 13C T1-filter, where 13C NMR resonance lines of a C(H) triplet were observed in all three phases. The chain axis of ∼26% extended chains in the interphase deviates 35°-50° relative to the stretching direction, while there is only a 1° deviation for the extended chains in the crystalline domain. The increasing iodine concentration results in the increment of hydrogen-bonded C(H) fractions in both the amorphous and interphase domains, while the distribution of different C(H) fractions remains almost constant in the crystalline domain. Such an increment results from the locally extended PVA chains induced by polyiodine species (I3-/I5-), since the hydrogen bond(s) (HBs) required a specific direction. Direct evidence for this comes from the similar 13C CP/MAS spectra of C(H) in the three phases between unoriented iodine-doped PVA and highly oriented pure PVA. This supports the aggregation model for the formation mechanism of PVA-iodine complexes, where the PVA chain takes an extended zig-zag conformation.
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Affiliation(s)
- Yahui Li
- National Synchrotron Radiation Laboratory, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China.
| | - Wei Tao
- National Synchrotron Radiation Laboratory, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China.
| | - Wei Chen
- National Synchrotron Radiation Laboratory, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China.
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2
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Ram Prasad S, Jayakrishnan A, Sampath Kumar T. Hydroxyapatite-poly(vinyl alcohol) core-shell nanoparticles for dual delivery of methotrexate and gemcitabine for bone cancer treatment. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.03.041] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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3
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Spreading fully at the ice-water interface is required for high ice recrystallization inhibition activity. Sci China Chem 2019. [DOI: 10.1007/s11426-018-9428-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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4
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Münster L, Vícha J, Klofáč J, Masař M, Hurajová A, Kuřitka I. Dialdehyde cellulose crosslinked poly(vinyl alcohol) hydrogels: Influence of catalyst and crosslinker shelf life. Carbohydr Polym 2018; 198:181-190. [DOI: 10.1016/j.carbpol.2018.06.035] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 05/24/2018] [Accepted: 06/02/2018] [Indexed: 01/30/2023]
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5
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Benjasirimongkol P, Ueda K, Higashi K, Sriamornsak P, Moribe K. An Insight into Stabilization Mechanism of a Solid Dispersion of Indomethacin/Partially Hydrolyzed Polyvinyl Alcohol Prepared by Hot-Melt Extrusion. Chem Pharm Bull (Tokyo) 2018; 66:859-865. [PMID: 30175742 DOI: 10.1248/cpb.c18-00362] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We examined the effect of hot-melt extrusion condition on the physical stability of the solid dispersion prepared using partially hydrolyzed polyvinyl alcohol (PVOH). The hot-melt extrusion of indomethacin (IMC) and PVOH mixed at the weight ratio of 3 : 7, 5 : 5 and 7 : 3 was performed either at 170 or 190°C to prepare the IMC/PVOH hot-melt extrudate (HME). Differential scanning calorimetry represented that IMC was mixed with PVOH on a scale of several tens of nanometer in all the HMEs with different weight ratio. 13C solid-state NMR measurement revealed that an intermolecular interaction was formed between a carboxylic group of IMC and a hydroxy group of PVOH in the HMEs. The intermolecular interaction in the HMEs was stronger at the higher extrusion temperature. At the low IMC loading, the IMC molecules could be mixed with the amorphous PVOH at the molecular level, and the remained PVOH without interaction formed the crystal phase. On the other hand, at the high IMC loading, most PVOH could be amorphized by the interaction with IMC, and the excess IMC which did not interact with PVOH formed the IMC-rich domain. The IMC/PVOH HME at the weight ratio of 7 : 3 extruded at higher extrusion temperature showed higher physical stability of amorphous IMC compared with that extruded at lower extrusion temperature. The hot-melt extrusion process at higher temperature provided the rapid melting of PVOH crystal phase, resulted in the homogeneous mixing with IMC and the formation of stronger intermolecular interaction.
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Affiliation(s)
- Porntip Benjasirimongkol
- Graduate School of Pharmaceutical Sciences, Chiba University.,Department of Pharmaceutical Technology, Faculty of Pharmacy, Silpakorn University
| | - Keisuke Ueda
- Graduate School of Pharmaceutical Sciences, Chiba University
| | | | - Pornsak Sriamornsak
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Silpakorn University
| | - Kunikazu Moribe
- Graduate School of Pharmaceutical Sciences, Chiba University
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Mendis SN, Zhou T, Klausen RS. Syndioselective Polymerization of a BN Aromatic Vinyl Monomer. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b01707] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Shehani N. Mendis
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St., Baltimore, Maryland 21218, United States
| | - Tiffany Zhou
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St., Baltimore, Maryland 21218, United States
| | - Rebekka S. Klausen
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St., Baltimore, Maryland 21218, United States
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Zhu C, Mu AU, Wang C, Ji X, Fang L. Synthesis and Solution Processing of a Rigid Polymer Enabled by Active Manipulation of Intramolecular Hydrogen Bonds. ACS Macro Lett 2018; 7:801-806. [PMID: 35650771 DOI: 10.1021/acsmacrolett.8b00388] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Global intramolecular hydrogen bonds were installed and manipulated in a rigid artificial synthetic polymer in order to actively control its conformation for synthesis and processing. The polymer solubility was switched on and off by chemically inhibiting and regenerating these preorganized intramolecular hydrogen bonds. Such active manipulation made it possible to synthesize this highly rigid polymer with elevated molecular weights. A well-solubilized, noncoplanar polymer precursor with thermally cleavable Boc groups was synthesized (Mn = 32.4 kg/mol). After processing this precursor into thin films, in situ thermal treatment regenerated the latent intramolecular hydrogen bonds and led to a rigid ladder-type conformation. Such manipulation of the intramolecular hydrogen bonds allowed for multilayer deposition of this polymer, laying the foundation for potential additive manufacturing using this strategy.
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Bakir M, Elhebeary M, Meyer JL, Sutrisno A, Economy J, Jasiuk I. Interfacial liquid crystalline mesophase domain on carbon nanofillers in aromatic thermosetting copolyester matrix. J Appl Polym Sci 2018. [DOI: 10.1002/app.46584] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mete Bakir
- Department of Mechanical Science and Engineering; University of Illinois at Urbana-Champaign; Urbana Illinois 61801
| | - Mohamed Elhebeary
- Department of Mechanical Science and Engineering; University of Illinois at Urbana-Champaign; Urbana Illinois 61801
| | - Jacob L. Meyer
- Department of Mechanical Science and Engineering; University of Illinois at Urbana-Champaign; Urbana Illinois 61801
- ATSP Innovations; Champaign Illinois 61820
| | - Andre Sutrisno
- NMR/EPR Laboratory, School of Chemical Sciences; University of Illinois at Urbana-Champaign; Urbana Illinois 61801
| | - James Economy
- ATSP Innovations; Champaign Illinois 61820
- Department of Materials Science and Engineering; University of Illinois at Urbana-Champaign; Urbana Illinois 61801
| | - Iwona Jasiuk
- Department of Mechanical Science and Engineering; University of Illinois at Urbana-Champaign; Urbana Illinois 61801
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Bakir M, Meyer JL, Hussainova I, Sutrisno A, Economy J, Jasiuk I. Periodic Functionalization of Graphene‐Layered Alumina Nanofibers with Aromatic Thermosetting Copolyester via Epitaxial Step‐Growth Polymerization. MACROMOL CHEM PHYS 2017. [DOI: 10.1002/macp.201700338] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Mete Bakir
- Department of Mechanical Science and Engineering University of Illinois at Urbana‐Champaign Urbana IL 61801 USA
| | - Jacob L. Meyer
- Department of Mechanical Science and Engineering University of Illinois at Urbana‐Champaign Urbana IL 61801 USA
- ATSP Innovations Champaign IL 61820 USA
| | - Irina Hussainova
- Department of Mechanical Science and Engineering University of Illinois at Urbana‐Champaign Urbana IL 61801 USA
- Centre of Innovative Industrial Materials Tallinn University of Technology Ehitajate 5 Tallinn 19180 Estonia
- ITMO University Kronverksky 49 St. Petersburg 197101 Russia
| | - Andre Sutrisno
- NMR/EPR Laboratory School of Chemical Sciences University of Illinois at Urbana‐Champaign Urbana IL 61801 USA
| | - James Economy
- ATSP Innovations Champaign IL 61820 USA
- Department of Materials Science and Engineering University of Illinois at Urbana‐Champaign Urbana IL 61801 USA
| | - Iwona Jasiuk
- Department of Mechanical Science and Engineering University of Illinois at Urbana‐Champaign Urbana IL 61801 USA
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10
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A polyrotaxane gel using boronic acid-appended γ-cyclodextrin as a hybrid cross-linker. J INCL PHENOM MACRO 2017. [DOI: 10.1007/s10847-017-0755-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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11
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Hakalahti M, Mautner A, Johansson LS, Hänninen T, Setälä H, Kontturi E, Bismarck A, Tammelin T. Direct Interfacial Modification of Nanocellulose Films for Thermoresponsive Membrane Templates. ACS APPLIED MATERIALS & INTERFACES 2016; 8:2923-2927. [PMID: 26812620 DOI: 10.1021/acsami.5b12300] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This letter proposes a strategy to construct tunable films combining the physical characteristics of cellulose nanofibrils and smart polymers for membrane applications. A functional membrane template was obtained by first fabricating a water stable film from cellulose nanofibrils and subsequently surface grafting it with a thermoresponsive polymer, poly(N-isopropylacrylamide). The behavior of the membrane template was dependent on temperature. The increment in slope of relative water permeance around the lower critical solution temperature of poly(N-isopropylacrylamide) increased from 18 to 100% upon polymer attachment. Although the membrane template essentially consisted of wood-based materials, the benefits of smart synthetic polymers were achieved.
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Affiliation(s)
- Minna Hakalahti
- High Performance Fibre Products, VTT Technical Research Center of Finland Ltd , FI-02044 VTT, Espoo, Finland
| | - Andreas Mautner
- Polymer & Composite Engineering (PaCE) Group, Institute for Materials Chemistry & Research, University of Vienna , Währingerstrasse 42, A-1090 Vienna, Austria
- Polymer & Composite Engineering (PaCE) Group, Dept. of Chemical Engineering, Imperial College London , South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Leena-Sisko Johansson
- Department of Forest Products Technology, School of Chemical Technology, Aalto University , 02150 Espoo, Finland
| | - Tuomas Hänninen
- High Performance Fibre Products, VTT Technical Research Center of Finland Ltd , FI-02044 VTT, Espoo, Finland
| | - Harri Setälä
- High Performance Fibre Products, VTT Technical Research Center of Finland Ltd , FI-02044 VTT, Espoo, Finland
| | - Eero Kontturi
- Department of Forest Products Technology, School of Chemical Technology, Aalto University , 02150 Espoo, Finland
| | - Alexander Bismarck
- Polymer & Composite Engineering (PaCE) Group, Institute for Materials Chemistry & Research, University of Vienna , Währingerstrasse 42, A-1090 Vienna, Austria
- Polymer & Composite Engineering (PaCE) Group, Dept. of Chemical Engineering, Imperial College London , South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Tekla Tammelin
- High Performance Fibre Products, VTT Technical Research Center of Finland Ltd , FI-02044 VTT, Espoo, Finland
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12
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Kharkov BB, Chizhik VI, Dvinskikh SV. Broadband cross-polarization-based heteronuclear dipolar recoupling for structural and dynamic NMR studies of rigid and soft solids. J Chem Phys 2016; 144:034201. [DOI: 10.1063/1.4939798] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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13
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Huang L, Wang JH. Permeability of hydrated poly(vinyl alcohol): Effect of relaxation behaviors and hydrogen bonds in supramolecular structure. POLYMER SCIENCE SERIES A 2015. [DOI: 10.1134/s0965545x15050107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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He M, Wang Z, Cao Y, Zhao Y, Duan B, Chen Y, Xu M, Zhang L. Construction of Chitin/PVA Composite Hydrogels with Jellyfish Gel-Like Structure and Their Biocompatibility. Biomacromolecules 2014; 15:3358-65. [DOI: 10.1021/bm500827q] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
| | | | | | | | | | | | - Min Xu
- Department
of Physics, East China Normal University, Shanghai, 200062, China
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15
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De Rosa C, Auriemma F, Di Girolamo R. Kinetic Analysis of Cryotropic Gelation of Poly(Vinyl Alcohol)/Water Solutions by Small-Angle Neutron Scattering. POLYMERIC CRYOGELS 2014. [DOI: 10.1007/978-3-319-05846-7_4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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16
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Bhunia T, Giri A, Nasim T, Chattopadhyay D, Bandyopadhyay A. Physical, mechanical, and transdermal diltiazem release analysis of nanosilica tailored various poly(vinyl alcohol) membranes. J Appl Polym Sci 2013. [DOI: 10.1002/app.39404] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tridib Bhunia
- Department of Polymer Science and Technology; University of Calcutta; Calcutta; 700009; India
| | - Arindam Giri
- Department of Polymer Science and Technology; University of Calcutta; Calcutta; 700009; India
| | - Tanbir Nasim
- Department of Polymer Science and Technology; University of Calcutta; Calcutta; 700009; India
| | - Dipankar Chattopadhyay
- Department of Polymer Science and Technology; University of Calcutta; Calcutta; 700009; India
| | - Abhijit Bandyopadhyay
- Department of Polymer Science and Technology; University of Calcutta; Calcutta; 700009; India
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17
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Abd El-Mohdy HL, Mostafa TB. Synthesis of Polyvinyl Alcohol/Maleic Acid Hydrogels by Electron Beam Irradiation for Dye Uptake. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2012. [DOI: 10.1080/10601325.2013.735952] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- H. L. Abd El-Mohdy
- a National Center for Radiation research and Technology , Nasr City , Cairo , Egypt
- b Department of Chemistry, Faculty of Arts and Sciences , Northern Border University , Rafha , Saudi Arabia
| | - Tahia B. Mostafa
- c Chemistry Department , College for Women, Ain Shams University , Heliopolis , Cairo , Egypt
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18
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Chaléat C, Halley P, Truss R. Study on the phase separation of plasticised starch/poly(vinyl alcohol) blends. Polym Degrad Stab 2012. [DOI: 10.1016/j.polymdegradstab.2012.03.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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19
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Lian Z, Ye L. Effect of PEO on the network structure of PVA hydrogels prepared by freezing/thawing method. J Appl Polym Sci 2012. [DOI: 10.1002/app.38544] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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20
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WADA R, SHIMIZU H, OKABE M. Junction Size and Mechanical Properties of Atactic and Syndiotactic High-Molecular Weight Poly(vinyl alcohol) Hydrogels. KOBUNSHI RONBUNSHU 2012. [DOI: 10.1295/koron.69.623] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Semenzim VL, Basso GG, da Silva DA, de Vasconcellos A, Agreli G, Lima-Oliveira APM, Kawasaki-Oyama RS, Braile DM, Nery JG. Synthesis and characterization of novel, highly crystalline poly(vinyl alcohol) microspheres for chemoembolization therapy. J Appl Polym Sci 2011. [DOI: 10.1002/app.33623] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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23
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Restani RB, Correia VG, Bonifácio VD, Aguiar-Ricardo A. Development of functional mesoporous microparticles for controlled drug delivery. J Supercrit Fluids 2010. [DOI: 10.1016/j.supflu.2010.08.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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24
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Yuan J, Frauenrath H. Synthesis and 13C NMR Spectroscopy of Model Compounds for the Microstructure Analysis of Poly(Vinyl Glycoside)s. European J Org Chem 2008. [DOI: 10.1002/ejoc.200800798] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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25
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Yang H, Horii F. Investigation of the structure of poly(vinyl alcohol)–iodine complex hydrogels prepared from the concentrated polymer solutions. POLYMER 2008. [DOI: 10.1016/j.polymer.2007.12.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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26
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Alamo RG. Chapter 7 Phase Structure and Morphology. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/s0166-526x(08)00407-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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27
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Lozinsky VI, Damshkaln LG, Shaskol’skii BL, Babushkina TA, Kurochkin IN, Kurochkin II. Study of cryostructuring of polymer systems: 27. Physicochemical properties of poly(vinyl alcohol) cryogels and specific features of their macroporous morphology. COLLOID JOURNAL 2007. [DOI: 10.1134/s1061933x07060117] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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28
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Zhang X, Do MD, Dean K, Hoobin P, Burgar IM. Wheat-Gluten-Based Natural Polymer Nanoparticle Composites. Biomacromolecules 2007; 8:345-53. [PMID: 17291057 DOI: 10.1021/bm060929x] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of wheat-gluten-based nanocomposites were produced by dispersing Cloisite-30B nanoclay particles into plasticized wheat gluten systems under thermal processing conditions. The exfoliation of the nanoparticles as confirmed by wide-angle X-ray diffraction and transmission electron microscopy has resulted in significant enhancement of the mechanical properties for both deamidated proteins and vital gluten systems under 50% relative humidity (RH). Such strength improvement was also pronounced for wheat gluten (WG) systems under a high humidity condition (RH = 85%). A similar level of further strength enhancement was obtained for the WG systems that had been strengthened by blending with poly(vinyl alcohol) (PVA) and cross-linking with glyoxal. Although the nanoclay modifier, a quaternary ammonium, caused an additional plasticization to the materials, the interactions between the gluten matrix and the nanoparticles were predominant in all of these nanocomposites. A solid-state NMR study indicated that the polymer matrix in all of these nanocomposites displayed a wide distribution of chain mobilities at a molecular level (less than 1 nm). The interactions between the nanoparticles and the natural polymer matrix resulted in motional restriction for all components in the mobile phases including lipid, plasticizers, and plasticized components, although no significant influence from the nanoparticles was obtained in the mobility of the rigid phases (unplasticized components). On a scale of 20-30 nm, the deamidated protein systems tended to be homogeneous. The small domain size of the matrix resulted in modifications of the spin-lattice relaxation of these systems via spin diffusion. The residual starch seemed to remain in a relatively larger domain size in WG systems. The nanoparticles could enhance the miscibility between the starch and the other components in the WG nanocomposite, but such miscibility enhancement did not occur in the WG/PVA blend and the cross-linked system. These polymer matrixes were still heterogeneous on a scale of 20-30 nm.
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Affiliation(s)
- Xiaoqing Zhang
- Commonwealth Scientific and Industrial Research Organization Manufacturing & Materials Technology, Private Bag 33, Clayton South MDC, Clayton South, Victoria 3169, Australia.
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Yang H, Hu S, Horii F, Endo R, Hayashi T. CP/MAS 13C NMR analysis of the structure and hydrogen bonding of melt-crystallized poly(vinyl alcohol) films. POLYMER 2006. [DOI: 10.1016/j.polymer.2006.01.082] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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30
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Yi J, Goh S. Miscibility and interactions in poly(n-propyl methacrylate)/poly(vinyl alcohol) blends. POLYMER 2005. [DOI: 10.1016/j.polymer.2005.07.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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31
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Hernández R, Pérez E, Mijangos C, López D. Poly(vinyl alcohol)–poly(acrylic acid) interpenetrating networks. Study on phase separation and molecular motions. POLYMER 2005. [DOI: 10.1016/j.polymer.2005.05.108] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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32
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Hernández R, Rusa M, Rusa CC, López D, Mijangos C, Tonelli AE. Controlling PVA Hydrogels with γ-Cyclodextrin. Macromolecules 2004. [DOI: 10.1021/ma048375i] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rebeca Hernández
- Fiber & Polymer Science Program, North Carolina State University, Raleigh, North Carolina 27695-8301, and Instituto de Ciencia y Tecnología de Polímeros, C.S.I.C., Juan de la Cierva 3, 28006 Madrid, Spain
| | - Mariana Rusa
- Fiber & Polymer Science Program, North Carolina State University, Raleigh, North Carolina 27695-8301, and Instituto de Ciencia y Tecnología de Polímeros, C.S.I.C., Juan de la Cierva 3, 28006 Madrid, Spain
| | - Cristian C. Rusa
- Fiber & Polymer Science Program, North Carolina State University, Raleigh, North Carolina 27695-8301, and Instituto de Ciencia y Tecnología de Polímeros, C.S.I.C., Juan de la Cierva 3, 28006 Madrid, Spain
| | - Daniel López
- Fiber & Polymer Science Program, North Carolina State University, Raleigh, North Carolina 27695-8301, and Instituto de Ciencia y Tecnología de Polímeros, C.S.I.C., Juan de la Cierva 3, 28006 Madrid, Spain
| | - Carmen Mijangos
- Fiber & Polymer Science Program, North Carolina State University, Raleigh, North Carolina 27695-8301, and Instituto de Ciencia y Tecnología de Polímeros, C.S.I.C., Juan de la Cierva 3, 28006 Madrid, Spain
| | - Alan E. Tonelli
- Fiber & Polymer Science Program, North Carolina State University, Raleigh, North Carolina 27695-8301, and Instituto de Ciencia y Tecnología de Polímeros, C.S.I.C., Juan de la Cierva 3, 28006 Madrid, Spain
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33
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Zhang X, Burgar I, Lourbakos E, Beh H. The mechanical property and phase structures of wheat proteins/polyvinyl alcohol blends studied by high-resolution solid-state NMR. POLYMER 2004. [DOI: 10.1016/j.polymer.2004.02.044] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Lai S, Locci E, Saba G, Husu I, Masci G, Crescenzi V, Lai A. Solid-state13C and129Xe NMR study of poly(vinyl alcohol) and poly(vinyl alcohol)/lactosilated chitosan gels. ACTA ACUST UNITED AC 2003. [DOI: 10.1002/pola.10899] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Investigation of the relationships between the chain organization and rheological properties of atactic poly(vinyl alcohol) hydrogels. POLYMER 2003. [DOI: 10.1016/s0032-3861(03)00246-5] [Citation(s) in RCA: 87] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Kanekiyo M, Kobayashi M, Ando I, Kurosu H, Amiya S. A study of solvent exchange process in (ethylene-vinyl alcohol) copolymer gels by a proton nuclear magnetic resonance spectroscopy imaging method. J Appl Polym Sci 2002. [DOI: 10.1002/app.11010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Lai S, Casu M, Saba G, Lai A, Husu I, Masci G, Crescenzi V. Solid-state 13C NMR study of poly(vinyl alcohol) gels. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2002; 21:187-196. [PMID: 12199360 DOI: 10.1006/snmr.2002.0059] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Poly(vinyl alcohol) (PVA) with 55% and 61% syndiotacticity, and their related dry and hydrated gels obtained by two different freeze-thawing cycles have been investigated using the solid-state 13C CP-MAS NMR technique. From a comparative analysis of the spectra, evidence was obtained that the gelation process largely disrupts the intramolecular hydrogen-bonded network of the PVA. The addition of water to the dry gels favours their swelling, destroying intra-chain hydrogen bonds between hydroxyl groups as a function of the degree of tacticity and the gelation procedure, and promotes the formation of new networks of interchain hydrogen bonds. Information on the dynamics of the polymeric domains in the kilohertz range has been obtained from the analysis of the spin relaxation times T1rho(1H) and T1rho(13C) indicating that homogeneous arrangements of the amorphous or swollen polymeric chains exist, independent of the preparation method or the tacticity of the PVA chains.
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Affiliation(s)
- Simona Lai
- Dipartimento di Scienze Chimiche, Universita' di Cagliari, Cittadella Universitaria di Monserrato, Italy
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Chen Q, Kurosu H, Ma L, Matsuo M. Elongation-induced phase separation of poly(vinyl alcohol)/poly(acrylic-acid) blends as studied by 13 C CP/MAS NMR and wide-angle X-ray diffraction. POLYMER 2002. [DOI: 10.1016/s0032-3861(01)00690-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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40
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Kurosu H, Fukushima K, Matsuo M, Ando I, Amiya S. Structural characterization of drawn (ethylene–vinyl alcohol) copolymer by high-resolution solid-state 13C NMR. J Mol Struct 2002. [DOI: 10.1016/s0022-2860(01)00738-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Masuda K, Kaji H, Horii F. Solid-State 13C NMR and 1H CRAMPS Investigations of the Hydration Process and Hydrogen Bonding for Poly(vinyl alcohol) Films. Polym J 2001. [DOI: 10.1295/polymj.33.356] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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42
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Masuda K, Kaji H, Horii F. Studies on Different Types of Hydrogen Bonds in Poly(vinyl alcohol) Films by 1H CRAMPS and Solid-State Two-Dimensional 1H-13C Heteronuclear Correlation Analyses. Polym J 2001. [DOI: 10.1295/polymj.33.190] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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43
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Bin Y, Tanabe Y, Nakabayashi C, Kurosu H, Matsuo M. Morphology and mechanical properties of swollen gels and dry gel films of poly(vinyl alcohol) prepared by crystallization from solutions under simultaneous biaxially stretching. POLYMER 2001. [DOI: 10.1016/s0032-3861(00)00423-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Shuai X, He Y, Asakawa N, Inoue Y. Miscibility and phase structure of binary blends of poly(L-lactide) and poly(vinyl alcohol). J Appl Polym Sci 2001. [DOI: 10.1002/app.1493] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Sugiura K, Hashimoto M, Matsuzawa S, Yamaura K. Influence of degree of crystallinity and syndiotacticity on infrared spectra of solid PVA. J Appl Polym Sci 2001. [DOI: 10.1002/app.1963] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Kanekiyo M, Kobayashi M, Ando I, Kurosu H, Amiya S. Structural and Dynamic Study of Ethylene−Vinyl Alcohol Copolymer Gels by 1H Pulse NMR and Solid-State 13C NMR. Macromolecules 2000. [DOI: 10.1021/ma000668y] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Masahito Kanekiyo
- Department of Chemistry and Materials Science, Tokyo Institute of Technology, Ookayama, Meguro-ku, Tokyo, Japan; Department of Human Life and Environment, Nara Women's University, Kitauoya-Nishimachi, Nara, Japan; and Analytical Research Center, Kuraray Co.,Ltd., Kurashiki, Okayama, Japan
| | - Masatoshi Kobayashi
- Department of Chemistry and Materials Science, Tokyo Institute of Technology, Ookayama, Meguro-ku, Tokyo, Japan; Department of Human Life and Environment, Nara Women's University, Kitauoya-Nishimachi, Nara, Japan; and Analytical Research Center, Kuraray Co.,Ltd., Kurashiki, Okayama, Japan
| | - Isao Ando
- Department of Chemistry and Materials Science, Tokyo Institute of Technology, Ookayama, Meguro-ku, Tokyo, Japan; Department of Human Life and Environment, Nara Women's University, Kitauoya-Nishimachi, Nara, Japan; and Analytical Research Center, Kuraray Co.,Ltd., Kurashiki, Okayama, Japan
| | - Hiromichi Kurosu
- Department of Chemistry and Materials Science, Tokyo Institute of Technology, Ookayama, Meguro-ku, Tokyo, Japan; Department of Human Life and Environment, Nara Women's University, Kitauoya-Nishimachi, Nara, Japan; and Analytical Research Center, Kuraray Co.,Ltd., Kurashiki, Okayama, Japan
| | - Shigetoshi Amiya
- Department of Chemistry and Materials Science, Tokyo Institute of Technology, Ookayama, Meguro-ku, Tokyo, Japan; Department of Human Life and Environment, Nara Women's University, Kitauoya-Nishimachi, Nara, Japan; and Analytical Research Center, Kuraray Co.,Ltd., Kurashiki, Okayama, Japan
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Masuda K, Kaji H, Horii F. CP/MAS13C NMR analyses of hydrogen bonding and the chain conformation in the crystalline and noncrystalline regions for poly(vinyl alcohol) films. ACTA ACUST UNITED AC 2000. [DOI: 10.1002/(sici)1099-0488(20000101)38:1<1::aid-polb1>3.0.co;2-z] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Wang P, Ando I. A study of structure and dynamics of poly(aspartic acid) sodium/poly(vinyl alcohol) blends by 13 C CP/MAS NMR. J Mol Struct 1999. [DOI: 10.1016/s0022-2860(99)00062-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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50
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Blends of polycaprolactone with polyvinylalcohol: a DSC, optical microscopy and solid state NMR study. POLYMER 1999. [DOI: 10.1016/s0032-3861(98)00253-5] [Citation(s) in RCA: 68] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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