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Liu S, Wu S, Chen Q. Using Coupling Motion of Connecting Ions in Designing Telechelic Ionomers. ACS Macro Lett 2020; 9:917-923. [PMID: 35648601 DOI: 10.1021/acsmacrolett.0c00256] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Conventional telechelic ionomers have one ion fixed at each end, enabling the chains to form a physical network. Here we report a type of telechelic ionomers with a distribution of the number of ions at the chain ends, which endows them with very rich rheological properties. We synthesized the ionomer samples via a two-step polymerization. Namely, we synthesized a precursor chain first and then polymerized a few ion-containing monomers at its two ends. An average number of ion-containing monomers per chain end, m, varies from 0 to 3.0. Linear viscoelasticity of these samples can be well explained through considering the Poisson distribution of m, and the hierarchical relaxation of the chains ends according to the number of connecting ions that exhibit the coupling motion.
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Affiliation(s)
- Shuang Liu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, People's Republic of China.,University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - Shilong Wu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, People's Republic of China
| | - Quan Chen
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, People's Republic of China.,University of Science and Technology of China, Hefei 230026, People's Republic of China
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2
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Gupit CI, Li X, Maekawa R, Hasegawa N, Iwase H, Takata S, Shibayama M. Nanostructures and Viscosities of Nafion Dispersions in Water/Ethanol from Dilute to Concentrated Regimes. Macromolecules 2020. [DOI: 10.1021/acs.macromol.9b02314] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Caidric Indaya Gupit
- Institute for Solid State Physics, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa 277-8581, Japan
| | - Xiang Li
- Institute for Solid State Physics, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa 277-8581, Japan
| | - Ryosuke Maekawa
- Toyota Motor Corporation, 1 Toyota-cho, Toyota, Aichi 471-8572, Japan
| | - Naoki Hasegawa
- Toyota Motor Corporation, 1 Toyota-cho, Toyota, Aichi 471-8572, Japan
- Toyota Central R&D Laboratories, Inc., 41-1 Yokomichi, Nagakute, Aichi 480-1192, Japan
| | - Hiroki Iwase
- Neutron Science and Technology Center, Comprehensive Research Organization for Science and Society (CROSS), 162-1 Shirakata, Tokai, Ibaraki 319-1106, Japan
| | - Shinichi Takata
- Materials & Life Science Facility Division, J-PARC Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - Mitsuhiro Shibayama
- Institute for Solid State Physics, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa 277-8581, Japan
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3
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Kim J, Jung HY, Park MJ. End-Group Chemistry and Junction Chemistry in Polymer Science: Past, Present, and Future. Macromolecules 2020. [DOI: 10.1021/acs.macromol.9b02293] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jihoon Kim
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, Korea 790-784
| | - Ha Young Jung
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, Korea 790-784
| | - Moon Jeong Park
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, Korea 790-784
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Tress M, Xing K, Ge S, Cao P, Saito T, Sokolov A. What dielectric spectroscopy can tell us about supramolecular networks ⋆. THE EUROPEAN PHYSICAL JOURNAL. E, SOFT MATTER 2019; 42:133. [PMID: 31624934 DOI: 10.1140/epje/i2019-11897-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 09/13/2019] [Indexed: 06/10/2023]
Abstract
Polymers which can form supramolecular networks are a promising class of materials to provide highly sought-after properties such as self-healing, enhanced mechanical strength, super-stretchability as well as easy recyclability. However, due to the vast range of possible chemical structures it is very demanding to optimize these materials for the desired performance. Consequently, a detailed understanding of the molecular processes that govern the macroscopic properties is paramount to their technological application. Here we discuss some telechelic model systems with hydrogen-bonding end groups and how dielectric spectroscopy in combination with linear oscillatory shear rheology helped to understand the association mechanism on a molecular scale, and verify the model of bond-lifetime renormalization. Furthermore, we analyze a limitation of these H-bonding polymers, namely that there is a trade-off between high plateau modulus and long terminal relaxation time --both cannot be maximized at the same time. Finally, we show how more complex end groups phase separate from the main chain melt and thus lead to a more sophisticated rheological behavior which can overcome that limitation.
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Affiliation(s)
- Martin Tress
- Department of Chemistry, University of Tennessee, Knoxville, 37996, Knoxville, TN, USA.
| | - Kunyue Xing
- Department of Chemistry, University of Tennessee, Knoxville, 37996, Knoxville, TN, USA
| | - Sirui Ge
- Department of Materials Science, University of Tennessee, Knoxville, 37996, Knoxville, TN, USA
| | - Pengfei Cao
- Oak Ridge National Laboratory, Chemical Sciences Division, 37831, Oak Ridge, TN, USA
| | - Tomonori Saito
- Oak Ridge National Laboratory, Chemical Sciences Division, 37831, Oak Ridge, TN, USA
| | - Alexei Sokolov
- Department of Chemistry, University of Tennessee, Knoxville, 37996, Knoxville, TN, USA.
- Oak Ridge National Laboratory, Chemical Sciences Division, 37831, Oak Ridge, TN, USA.
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Polacco G, Filippi S, Merusi F, Stastna G. A review of the fundamentals of polymer-modified asphalts: Asphalt/polymer interactions and principles of compatibility. Adv Colloid Interface Sci 2015; 224:72-112. [PMID: 26277208 DOI: 10.1016/j.cis.2015.07.010] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Revised: 06/08/2015] [Accepted: 07/20/2015] [Indexed: 10/23/2022]
Abstract
During the last decades, the number of vehicles per citizen as well as the traffic speed and load has dramatically increased. This sudden and somehow unplanned overloading has strongly shortened the life of pavements and increased its cost of maintenance and risks to users. In order to limit the deterioration of road networks, it is necessary to improve the quality and performance of pavements, which was achieved through the addition of a polymer to the bituminous binder. Since their introduction, polymer-modified asphalts have gained in importance during the second half of the twentieth century, and they now play a fundamental role in the field of road paving. With high-temperature and high-shear mixing with asphalt, the polymer incorporates asphalt molecules, thereby forming a swallowed network that involves the entire binder and results in a significant improvement of the viscoelastic properties in comparison with those of the unmodified binder. Such a process encounters the well-known difficulties related to the poor solubility of polymers, which limits the number of macromolecules able to not only form such a structure but also maintain it during high-temperature storage in static conditions, which may be necessary before laying the binder. Therefore, polymer-modified asphalts have been the subject of numerous studies aimed to understand and optimize their structure and storage stability, which gradually attracted polymer scientists into this field that was initially explored by civil engineers. The analytical techniques of polymer science have been applied to polymer-modified asphalts, which resulted in a good understanding of their internal structure. Nevertheless, the complexity and variability of asphalt composition rendered it nearly impossible to generalize the results and univocally predict the properties of a given polymer/asphalt pair. The aim of this paper is to review these aspects of polymer-modified asphalts. Together with a brief description of the specification and techniques proposed to quantify the storage stability, state-of-the-art knowledge about the internal structure and morphology of polymer-modified asphalts is presented. Moreover, the chemical, physical, and processing solutions suggested in the scientific and patent literature to improve storage stability are extensively discussed, with particular attention to an emerging class of asphalt binders in which the technologies of polymer-modified asphalts and polymer nanocomposites are combined. These polymer-modified asphalt nanocomposites have been introduced less than ten years ago and still do not meet the requirements of industrial practice, but they may constitute a solution for both the performance and storage requirements.
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Wee MS, Matia-Merino L, Goh KK. The cation-controlled and hydrogen bond-mediated shear-thickening behaviour of a tree-fern isolated polysaccharide. Carbohydr Polym 2015; 130:57-68. [DOI: 10.1016/j.carbpol.2015.03.086] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Revised: 03/30/2015] [Accepted: 03/30/2015] [Indexed: 11/30/2022]
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7
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Vasil’ev VG, Wasserman LA, Nikiforova GG, Komarova LI, Timofeeva GI, Plashchina IG, Salazkin SN, Papkov VS. Structuring in solutions of polydiphenylenesulfophthalide salts and their combined systems with a cationic surfactant. POLYMER SCIENCE SERIES A 2014. [DOI: 10.1134/s0965545x1401012x] [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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8
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Stavrouli N, Iatridi Z, Aubry T, Tsitsilianis C. Three different types of physical gels originate from a common triblock copolymer precursor: the case of an ionomer gel. Polym Chem 2013. [DOI: 10.1039/c2py21024j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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9
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Sui K, Zhao X, Wu Z, Xia Y, Liang H, Li Y. Synthesis, rapid responsive thickening, and self-assembly of brush copolymer poly(ethylene oxide)-graft-poly(N,N-dimethylaminoethyl methacrylate) in aqueous solutions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:153-160. [PMID: 22107261 DOI: 10.1021/la2031472] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Double hydrophilic brush copolymer poly(ethylene oxide)-graft-poly(N,N-dimethylaminoethyl methacrylate) (PEO-g-PDMAEMA) was successfully prepared via atom transfer radical polymerization (ATRP). We investigated the pH/thermoresponsive behaviors of PEO-g-PDMAEMA brush-shaped copolymer concentrated aqueous solutions by rheology. The observed LCST strongly decreased with increasing pH of the solutions, which was lower than that of linear block copolymer for different pH, indicating rapid thermoresponsiveness of the brush PDMAEMA chains. An unexpected shear thickening behavior was observed and could be tuned by the pH, resulting from the mobile nature and tractive force of the densely grafted hydrophobic chains of PDMAEMA at high pH. Self-assembly of the brush copolymer in a different pH and ionic strength environment was studied by transmission electron microscopy. A wormlike cylinder structure was formed at low pH. Fractals were observed for the brush copolymer aqueous solution in the presence of NaCl. The results showed that by adjusting the pH and NaCl concentration of the dispersions fractal aggregates with different topology were obtained. The observations reported here can supply a better understanding of the molecular self-assembling nature and be used to develop responsive materials with better performance.
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Affiliation(s)
- Kunyan Sui
- State Key Laboratory Cultivating Base for New Fiber Materials and Modern Textile, Department of Polymer Science and Engineering, Qingdao University, Qingdao, 266071, China.
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Lele A, Shedge A, Badiger M, Wadgaonkar P, Chassenieux C. Abrupt Shear Thickening of Aqueous Solutions of Hydrophobically Modified Poly(N,N′-dimethylacrylamide-co-acrylic acid). Macromolecules 2010. [DOI: 10.1021/ma1017378] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ashish Lele
- Polymer Science and Engineering Division, National Chemical Laboratory, Pune 411 008, India
| | - Aarti Shedge
- Polymer Science and Engineering Division, National Chemical Laboratory, Pune 411 008, India
| | - Manohar Badiger
- Polymer Science and Engineering Division, National Chemical Laboratory, Pune 411 008, India
| | - Prakash Wadgaonkar
- Polymer Science and Engineering Division, National Chemical Laboratory, Pune 411 008, India
| | - Christophe Chassenieux
- Polymer, Colliods and Interfaces UMR CNRS 6120, Universite du Maine, Avenue Olivier Messiaen 72085, Le Mans, cedex 09, France
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11
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Stadler FJ, Still T, Fytas G, Bailly C. Elongational Rheology and Brillouin Light Scattering of Entangled Telechelic Polybutadiene Based Temporary Networks. Macromolecules 2010. [DOI: 10.1021/ma101028b] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Florian J. Stadler
- Pôle Bio- and Soft Matter (BSMA), Institut de la Matière condensée et des Nanosciences (IMCN), Université catholique de Louvain, Croix du Sud, 1, B-1348 Louvain-la-Neuve, Belgium
- Chonbuk National University, School of Semiconductor and Chemical Engineering, 664-14, 1-ga Deokjin-dong, Deokjin-gu, Jeonju, Jeonbuk, 561-756, Republic of Korea
| | - Tim Still
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - George Fytas
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
- Department of Materials Science, University of Crete and FORTH, P.O. Box 1527, 71110 Heraklion, Greece
| | - Christian Bailly
- Pôle Bio- and Soft Matter (BSMA), Institut de la Matière condensée et des Nanosciences (IMCN), Université catholique de Louvain, Croix du Sud, 1, B-1348 Louvain-la-Neuve, Belgium
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12
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Stadler FJ, Pyckhout-Hintzen W, Schumers JM, Fustin CA, Gohy JF, Bailly C. Linear Viscoelastic Rheology of Moderately Entangled Telechelic Polybutadiene Temporary Networks. Macromolecules 2009. [DOI: 10.1021/ma802488a] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Florian J. Stadler
- Unité de Physique et de Chimie des Hauts Polymères, Université catholique de Louvain, B-1348 Louvain-la-Neuve, Belgium
| | - Wim Pyckhout-Hintzen
- Institute of Solid State Research, Research Center Jülich, D-52425 Jülich, Germany
| | - Jean-Marc Schumers
- Unité de Chimie des Matériaux Inorganiques et Organiques, Université catholique de Louvain, Place L. Pasteur 1, B-1348 Louvain-la-Neuve, Belgium
| | - Charles-André Fustin
- Unité de Chimie des Matériaux Inorganiques et Organiques, Université catholique de Louvain, Place L. Pasteur 1, B-1348 Louvain-la-Neuve, Belgium
| | - Jean-François Gohy
- Unité de Chimie des Matériaux Inorganiques et Organiques, Université catholique de Louvain, Place L. Pasteur 1, B-1348 Louvain-la-Neuve, Belgium
| | - Christian Bailly
- Unité de Physique et de Chimie des Hauts Polymères, Université catholique de Louvain, B-1348 Louvain-la-Neuve, Belgium
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13
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Abstract
The principle subject in the current paper is to summarize and characterize the ionomers based on polymers and copolymers such as polystyrene (PSt), polyisoprene (PIP), polybutadiene (PB), poly(styrene-b-isobutylene-b-styrene) (PSt-PIB-PSt), poly(butadiene-styrene) (PB-PSt), poly(ethylene terephthalate) (PET), poly(butylene adipate) (PBA), poly(butylene succinate) (PBSi), poly(dimethylcarbosiloxanes), polyurethane, etc. The self-assembly of ionomers, models concerning ionomer morphologies, physical and rheological properties of ionomer phase and percolation behavior of ionomers were discussed. The ionomer phase materials and dispersions have been characterized by differential scanning calorimetry (DSC), small-angle X-ray catering (SAXS), small-angle neutron scattering (SANS), Fourier transform infrared (FTIR) spectroscopy, transmission electron microscopy (TEM), etc. The wide range of compositions, molecular architectures, and morphologies present in ionomeric disperse systems are of great interest. The research is particularly devoted to the potential application of these materials and an understanding of the fundamental principles of the ionomers. They are extremely complex systems, sensitive to changes in structure and composition, and therefore not easily amenable to modeling and to the derivation of general patterns of behavior. The reviewed data indicate that a large number of parameters are important in influencing multiplet formation and clustering in random ionomers. Among these are the ion content, size of the polyion and counterion, dielectric constant of the host, T(g) of the polymer, rigidity or persistence length of the backbone, position of the ion pair relative to the backbone, steric constraints, amount and nature of added additive (plasticizer), thermal history, etc.
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Affiliation(s)
- Ignác Capek
- Polymer Institute, Slovak Academy of Sciences, 842 36 Bratislava, Slovakia.
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14
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Abstract
The principal subject discussed in the current paper is the effect of ionic functional groups in polymers on the formation of nontraditional polymer materials, polymer blends or polymer dispersions. Ionomers are polymers that have a small amount of ionic groups distributed along a nonionic hydrocarbon chain. Specific interactions between components in a polymer blend can induce miscibility of two or more otherwise immiscible polymers. Such interactions include hydrogen bonding, ion-dipole interactions, acid-base interactions or transition metal complexation. Ion-containing polymers provide a means of modifying properties of polymer dispersions by controlling molecular structure through the utilization of ionic interactions. Ionomers having a relatively small number of ionic groups distributed usually along nonionic organic backbone chains can agglomerate into the following structures: (1) multiplets, consisting of a small number of tightly packed ion pairs; and (2) ionic clusters, larger aggregates than multiplets. Ionomers exhibit unique solid-state properties as a result of strong associations among ionic groups attached to the polymer chains. An important potential application of ionomers is in the area of thermoplastic elastomers, where the associations constitute thermally reversible cross-links. The ionic (anionic, cationic or polar) groups are spaced more or less randomly along the polymer chain. Because in this type of ionomer an anionic group falls along the interior of the chain, it trails two hydrocarbon chain segments, and these must be accommodated sterically within any domain structure into which the ionic group enters. The primary effects of ionic functionalization of a polymer are to increase the glass transition temperature, the melt viscosity and the characteristic relaxation times. The polymer microstructure is also affected, and it is generally agreed that in most ionomers, microphase-separated, ion-rich aggregates form as a result of strong ion-dipole attractions. As a consequence of this new phase, additional relaxation processes are often observed in the viscoelastic behavior of ionomers. Light functionalization of polymers can increase the glass transition temperature and gives rise to two new features in viscoelastic behavior: (1) a rubbery plateau above T(g) and (2) a second loss process at elevated temperatures. The rubbery plateau was due to the formation of a physical network. The major effect of the ionic aggregate was to increase the longer time relaxation processes. This in turn increases the melt viscosity and is responsible for the network-like behavior of ionomers above the glass transition temperature. Ionomers rich in polar groups can fulfill the criteria for the self-assembly formation. The reported phenomenon of surface micelle formation has been found to be very general for these materials.
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Affiliation(s)
- Ignác Capek
- Polymer Institute, Slovak Academy of Sciences, 842 36 Bratislava, Slovakia.
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15
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Rahman SA, Nemoto N. Viscoelasticity of Potassium Neutralized Telechelic Poly(ethylene–butylene) Ionomer in Non-polar Solvent. II. Polym J 2004. [DOI: 10.1295/polymj.36.817] [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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Esquenet C, Terech P, Boué F, Buhler E. Structural and rheological properties of hydrophobically modified polysaccharide associative networks. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2004; 20:3583-92. [PMID: 15875387 DOI: 10.1021/la036395s] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
The phase behavior of hydrophobically modified chitosans (HMCs) in aqueous solution has been investigated using scattering and rheology experiments. We observed four regions on the phase diagram of the associative polymer: (i) a supernatant phase (unimers phase) at low polymer concentration; (ii) a dilute solution of intermolecularly bridged flowerlike micelles at intermediate concentration; (iii) an associative gel phase at high polymer content; and (iv) a phase separation. In the present paper, we discuss the structural and dynamical properties of the HMC associative networks (c > c*) at a fixed hydrophobic degree of substitution of 2% and fixed alkyl side chains (stickers) length C8 (domains iii and iv of the phase diagram). As the polymer concentration is increasing, a connecting network is formed from the percolation of bridges between micellar aggregates. In this regime, small-angle neutron scattering and light scattering measurements show that -50-nm flower aggregates are acting like junction points in the network. The effect of the concentration, the stress, and the shear on the structure of the network is discussed. In particular, we observe bridge-to-loop transitions and then the formation of microgels or a low-connected network under shear. Therefore, our results are compared to recent theoretical models and to the results reported for telechelic systems.
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Affiliation(s)
- Catherine Esquenet
- Centre de Recherches sur les Macromolécules Végétales, UPR-CNRS 5301, University Joseph Fourier, BP 53, 38041 Grenoble, France
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18
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Polacco G, Stastna J, Vlachovicova Z, Biondi D, Zanzotto L. Temporary networks in polymer-modified asphalts. POLYM ENG SCI 2004. [DOI: 10.1002/pen.20246] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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19
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Semenov AN, Rubinstein M. Dynamics of Entangled Associating Polymers with Large Aggregates. Macromolecules 2002. [DOI: 10.1021/ma0117965] [Citation(s) in RCA: 97] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- A. N. Semenov
- Department of Applied Mathematics, University of Leeds, Leeds LS2 9JT, U.K., and Department of Physics, Moscow State University, Moscow 117234, Russia
| | - Michael Rubinstein
- Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599-3290
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20
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Ma SX, Cooper SL. Shear Thickening in Aqueous Solutions of Hydrocarbon End-Capped Poly(ethylene oxide). Macromolecules 2001. [DOI: 10.1021/ma001772i] [Citation(s) in RCA: 107] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sharon X. Ma
- Department of Chemical Engineering, University of Delaware, Newark, Delaware 19716
| | - Stuart L. Cooper
- Department of Chemical Engineering, University of Delaware, Newark, Delaware 19716
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21
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Karayianni E, Jérôme R, Cooper SL. Small-Angle Neutron Scattering Studies of Low-Polarity Telechelic Ionomer Solutions. 3. Temperature Dependence of the Ionic Association. Macromolecules 2000. [DOI: 10.1021/ma991252r] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Eleni Karayianni
- Department of Chemical Engineering, University of WisconsinMadison, 1415 Engineering Drive, Madison, Wisconsin 53706; DuPont de Nemours International, S.A., European Technical Center, 2, chemin du Pavillon, CH-1218 Geneva, Switzerland; and University of Liège, Center for Education and Research on Macromolecules (CERM), Sart-Tilman, B6, 4000 Liège, Belgium
| | - Robert Jérôme
- Department of Chemical Engineering, University of WisconsinMadison, 1415 Engineering Drive, Madison, Wisconsin 53706; DuPont de Nemours International, S.A., European Technical Center, 2, chemin du Pavillon, CH-1218 Geneva, Switzerland; and University of Liège, Center for Education and Research on Macromolecules (CERM), Sart-Tilman, B6, 4000 Liège, Belgium
| | - Stuart L. Cooper
- Department of Chemical Engineering, University of WisconsinMadison, 1415 Engineering Drive, Madison, Wisconsin 53706; DuPont de Nemours International, S.A., European Technical Center, 2, chemin du Pavillon, CH-1218 Geneva, Switzerland; and University of Liège, Center for Education and Research on Macromolecules (CERM), Sart-Tilman, B6, 4000 Liège, Belgium
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22
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Hadjichristidis N, Pispas S, Pitsikalis M. End-functionalized polymers with zwitterionic end-groups. Prog Polym Sci 1999. [DOI: 10.1016/s0079-6700(99)00018-0] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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23
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Bhargava S, Cooper SL. Effect of Water on Viscosity and Shear-Thickening Behavior of Telechelic Ionomers in Nonpolar Solvents. Macromolecules 1998. [DOI: 10.1021/ma970889c] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- S. Bhargava
- Department of Chemical Engineering, University of Delaware, Newark, Deleware 19716
| | - S. L. Cooper
- Department of Chemical Engineering, University of Delaware, Newark, Deleware 19716
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24
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Karayianni E, Jérôme R, Cooper SL. Small-Angle Neutron Scattering Studies of Low Polarity Telechelic Ionomer Solutions. 2. Single Chain Scattering. Macromolecules 1997. [DOI: 10.1021/ma960242c] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Eleni Karayianni
- Department of Chemical Engineering, University of WisconsinMadison, 1415 Engineering Drive, Madison, Wisconsin 53706
| | - Robert Jérôme
- Department of Chemical Engineering, University of WisconsinMadison, 1415 Engineering Drive, Madison, Wisconsin 53706
| | - Stuart L. Cooper
- Department of Chemical Engineering, University of WisconsinMadison, 1415 Engineering Drive, Madison, Wisconsin 53706
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25
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van Stam J, De Schryver FC, Boens N, Hermans B, Jérôme R, Trossaert G, Goethals E, Schacht E. Intramolecular Excited-State Processes of a Halato-Telechelic Polymer, Evaluated by Global Compartmental Analysis of the Fluorescence Decay Surface with the Use of Model Compounds. Macromolecules 1997. [DOI: 10.1021/ma961271q] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jan van Stam
- Departement Scheikunde, Katholieke Universiteit Leuven, Celestijnenlaan 200F, BE-3001 Heverlee, Belgium, Université de Liège, Sart Tilman, BE-4000 Liège, Belgium, and Universiteit Gent, BE-9000 Gent, Belgium
| | - Frans C. De Schryver
- Departement Scheikunde, Katholieke Universiteit Leuven, Celestijnenlaan 200F, BE-3001 Heverlee, Belgium, Université de Liège, Sart Tilman, BE-4000 Liège, Belgium, and Universiteit Gent, BE-9000 Gent, Belgium
| | - Noël Boens
- Departement Scheikunde, Katholieke Universiteit Leuven, Celestijnenlaan 200F, BE-3001 Heverlee, Belgium, Université de Liège, Sart Tilman, BE-4000 Liège, Belgium, and Universiteit Gent, BE-9000 Gent, Belgium
| | - Bart Hermans
- Departement Scheikunde, Katholieke Universiteit Leuven, Celestijnenlaan 200F, BE-3001 Heverlee, Belgium, Université de Liège, Sart Tilman, BE-4000 Liège, Belgium, and Universiteit Gent, BE-9000 Gent, Belgium
| | - Robert Jérôme
- Departement Scheikunde, Katholieke Universiteit Leuven, Celestijnenlaan 200F, BE-3001 Heverlee, Belgium, Université de Liège, Sart Tilman, BE-4000 Liège, Belgium, and Universiteit Gent, BE-9000 Gent, Belgium
| | - Geert Trossaert
- Departement Scheikunde, Katholieke Universiteit Leuven, Celestijnenlaan 200F, BE-3001 Heverlee, Belgium, Université de Liège, Sart Tilman, BE-4000 Liège, Belgium, and Universiteit Gent, BE-9000 Gent, Belgium
| | - Erik Goethals
- Departement Scheikunde, Katholieke Universiteit Leuven, Celestijnenlaan 200F, BE-3001 Heverlee, Belgium, Université de Liège, Sart Tilman, BE-4000 Liège, Belgium, and Universiteit Gent, BE-9000 Gent, Belgium
| | - Etienne Schacht
- Departement Scheikunde, Katholieke Universiteit Leuven, Celestijnenlaan 200F, BE-3001 Heverlee, Belgium, Université de Liège, Sart Tilman, BE-4000 Liège, Belgium, and Universiteit Gent, BE-9000 Gent, Belgium
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Wu C, Woo K, Jiang M. Light-Scattering Studies of Styrene−(Ethylene-co-butylene)−Styrene Triblock Copolymer and Its Sulfonated Ionomers in Tetrahydrofuran. Macromolecules 1996. [DOI: 10.1021/ma960247+] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Maus C, Fayt R, Jérôme R, Teyssié P. Shear thickening of halato-telechelic polymers in apolar solvents. POLYMER 1995. [DOI: 10.1016/0032-3861(95)91457-i] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Charlier P, Agarwal PK, Jerome R. Influence of the functionality of the quaternizing agent and the polymer molecular weight on the viscoelastic behaviour of α,ω-(dimethylamino)polyisoprenes. POLYMER 1995. [DOI: 10.1016/0032-3861(95)93922-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Tant M, Venkateshwaran L, Song J, Subramanian R, Wilkes G, Charlier P, Jérôme R. Structure and properties of carboxylato-telechelic polyisoprene. POLYMER 1992. [DOI: 10.1016/0032-3861(92)90105-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Wang Z, Safran SA. Size distribution for aggregates of associating polymers. II. Linear packing. J Chem Phys 1988. [DOI: 10.1063/1.455623] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Tant MR, Wilkes GL. An Overview of the Viscous and Viscoelastic Behavior of Ionomers in Bulk and Solution. ACTA ACUST UNITED AC 1988. [DOI: 10.1080/15583728808085374] [Citation(s) in RCA: 71] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Bagrodia S, Tant MR, Wilkes GL, Kennedy JP. Sulphonated polyisobutylene telechelic ionomers: 12. Solid-state mechanical properties. POLYMER 1987. [DOI: 10.1016/0032-3861(87)90377-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Bug ALR, Cates ME, Safran SA, Witten TA. Theory of size distribution of associating polymer aggregates. I. Spherical aggregates. J Chem Phys 1987. [DOI: 10.1063/1.453195] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Tant M, Song J, Wilkes G, Horrion J, Jérôme R. Mechanical properties of carboxylato-telechelic polyisoprene. POLYMER 1986. [DOI: 10.1016/0032-3861(86)90281-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Meagher A, Coey J, Belakhovsky M, Pinéri M, Jérome R, Vlaic G, Williams C, Van Dang N. Microstructure of iron(III) α,ω-dicarboxylatopolybutadiene. POLYMER 1986. [DOI: 10.1016/0032-3861(86)90060-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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