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Bandelli D, Casini A, Guaragnone T, Baglioni M, Mastrangelo R, Pensabene Buemi L, Chelazzi D, Baglioni P. Tailoring the properties of poly(vinyl alcohol) "twin-chain" gels via sebacic acid decoration. J Colloid Interface Sci 2024; 657:178-192. [PMID: 38039879 DOI: 10.1016/j.jcis.2023.11.093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 11/10/2023] [Accepted: 11/15/2023] [Indexed: 12/03/2023]
Abstract
HYPOTHESIS The development of gels capable to adapt and act at the interface of rough surfaces is a central topic in modern science for Cultural Heritage preservation. To overcome the limitations of solvents or polymer solutions, commonly used in the restoration practice, poly(vinyl alcohol) (PVA) "twin-chain" polymer networks (TC-PNs) have been recently proposed. The properties of this new class of gels, that are the most performing gels available for Cultural Heritage preservation, are mostly unexplored. This paper investigates how chemical modifications affect gels' structure and their rheological behavior, producing new gelled systems with enhanced and tunable properties for challenging applications, not restricted to Cultural Heritage preservation. EXPERIMENTS In this study, the PVA-TC-PNs structural and functional properties were changed by functionalization with sebacic acid into a new class of TC-PNs. Functionalization affects the porosity and nanostructure of the network, changing its uptake/release of fluids and favoring the uptake of organic solvents with various polarity, a crucial feature to boost the versatility of TC-PNs in practical applications. FINDINGS The functionalized gels exhibited unprecedented performances during the cleaning of contemporary paintings from the Peggy Gugghenheim collection (Venice), whose restoration with traditional solvents and swabs would be difficult to avoid possible disfigurements to the painted layers. These results candidate the functionalized TC-PNs as a new, highly promising class of gels in art preservation.
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Affiliation(s)
- Damiano Bandelli
- Department of Chemistry, University of Florence, Via della Lastruccia 3, Sesto Fiorentino, FI 50019, Italy.
| | - Andrea Casini
- Department of Chemistry and CSGI, University of Florence, Via della Lastruccia 3, Sesto Fiorentino, FI 50019, Italy.
| | - Teresa Guaragnone
- Department of Chemistry and CSGI, University of Florence, Via della Lastruccia 3, Sesto Fiorentino, FI 50019, Italy.
| | - Michele Baglioni
- Department of Chemistry and CSGI, University of Florence, Via della Lastruccia 3, Sesto Fiorentino, FI 50019, Italy; Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, Siena 53100, Italy.
| | - Rosangela Mastrangelo
- Department of Chemistry, University of Florence, Via della Lastruccia 3, Sesto Fiorentino, FI 50019, Italy.
| | | | - David Chelazzi
- Department of Chemistry and CSGI, University of Florence, Via della Lastruccia 3, Sesto Fiorentino, FI 50019, Italy.
| | - Piero Baglioni
- Department of Chemistry and CSGI, University of Florence, Via della Lastruccia 3, Sesto Fiorentino, FI 50019, Italy.
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Yang K, Liu Q, Wen S, Zhuang T. Synthesis of branched polyisobutylenes via cationic copolymerization of
p
‐chloromethylstyrene
and isobutylene. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ke Yang
- Key Laboratory of Rubber‐Plastics of Ministry of Education Qingdao University of Science and Technology Qingdao China
| | - Qiang Liu
- Key Laboratory of Rubber‐Plastics of Ministry of Education Qingdao University of Science and Technology Qingdao China
| | - Shuai Wen
- Key Laboratory of Rubber‐Plastics of Ministry of Education Qingdao University of Science and Technology Qingdao China
| | - Tao Zhuang
- Key Laboratory of Rubber‐Plastics of Ministry of Education Qingdao University of Science and Technology Qingdao China
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Analysis of celluloses, plant holocelluloses, and wood pulps by size-exclusion chromatography/multi-angle laser-light scattering. Carbohydr Polym 2021; 251:117045. [PMID: 33142603 DOI: 10.1016/j.carbpol.2020.117045] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 08/07/2020] [Accepted: 08/31/2020] [Indexed: 11/23/2022]
Abstract
Size-exclusion chromatography with multi-angle laser-light scattering and refractive index detection (SEC/MALLS/RI) provides the number- and weight-average molar masses, molar mass distributions, conformations, and linear/branched structures of polymers. In the case of pure celluloses including highly crystalline tunicate and alga celluloses, and hemicellulose-rich plant holocelluloses, soaking in ethylene diamine (EDA) and subsequent solvent exchange to N,N-dimethylacetamide (DMAc) though methanol is effective for complete dissolution in ∼8% (w/w) LiCl/DMAc. SEC/MALLS/RI analysis can, therefore, be applied to pure celluloses, chemical wood pulps, and plant holocelluloses after dissolution in ∼8% (w/w) LiCl/DMAc, dilution to 1% (w/v) LiCl/DMAc and membrane filtration. All pure celluloses and the high-molar-mass cellulose fractions of hardwood and grass holocelluloses have linear and random-coil conformations and various average molar masses and molar mass distributions depending on the cellulose and holocellulose resources. In contrast, Japanese cedar (i.e., softwood) holocellulose and softwood bleached kraft pulp have alkali-stable cellulose/glucomannan branched structures in the high-molar-mass fractions.
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Lee S, Chang T. Branching Analysis of Comb-Shaped Polystyrene with Long Chain Branches. MACROMOL CHEM PHYS 2017. [DOI: 10.1002/macp.201700087] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sanghoon Lee
- Division of Advanced Materials Science and Department of Chemistry; Pohang University of Science and Technology (POSTECH); Pohang 37673 South Korea
| | - Taihyun Chang
- Division of Advanced Materials Science and Department of Chemistry; Pohang University of Science and Technology (POSTECH); Pohang 37673 South Korea
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Puskas JE, Sen S. Synthesis of Biodegradable Polyisobutylene Disulfides by Living Reversible Recombination Radical Polymerization (R3P): Macrocycles? Macromolecules 2017. [DOI: 10.1021/acs.macromol.6b02397] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Judit E. Puskas
- Chemical and Biomolecular
Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Sanghamitra Sen
- Chemical and Biomolecular
Engineering, The University of Akron, Akron, Ohio 44325, United States
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Babu HV, Muralidharan K. Polyethers with phosphate pendant groups by monomer activated anionic ring opening polymerization: Syntheses, characterization and their lithium-ion conductivities. POLYMER 2014. [DOI: 10.1016/j.polymer.2013.12.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Zhang Y, Teo BM, Postma A, Ercole F, Ogaki R, Zhu M, Städler B. Highly-Branched Poly(N-isopropylacrylamide) as a Component in Poly(dopamine) Films. J Phys Chem B 2013; 117:10504-12. [DOI: 10.1021/jp407106z] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Yan Zhang
- State
Key Laboratory for Modification of Chemical Fibers and Polymer Materials,
College of Material Science and Engineering, Donghua University, Shanghai 201620, People’s Republic of China
- iNANO
Interdisciplinary Nanoscience Center, Aarhus University, Aarhus, Denmark
| | - Boon M. Teo
- iNANO
Interdisciplinary Nanoscience Center, Aarhus University, Aarhus, Denmark
| | - Almar Postma
- Ian
Wark Laboratory, CSIRO Materials Science and Engineering, Bayview
Avenue, Clayton, Victoria 3168, Australia
| | - Francesca Ercole
- Department
of Materials Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Ryosuke Ogaki
- iNANO
Interdisciplinary Nanoscience Center, Aarhus University, Aarhus, Denmark
| | - Meifang Zhu
- State
Key Laboratory for Modification of Chemical Fibers and Polymer Materials,
College of Material Science and Engineering, Donghua University, Shanghai 201620, People’s Republic of China
| | - Brigitte Städler
- iNANO
Interdisciplinary Nanoscience Center, Aarhus University, Aarhus, Denmark
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Zhao YR, McAuley KB, Puskas JE, Dos Santos LM, Alvarez A. Mathematical Modeling of Arborescent Polyisobutylene Production in Batch Reactors. MACROMOL THEOR SIMUL 2013. [DOI: 10.1002/mats.201200058] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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