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Discrete Giant Polymeric Chains Based on Nanosized Monomers

[Image: see text] As size-amplified analogues of canonical macromolecules, polymeric chains built up by “giant” monomers represent an experimental realization of the “beads-on-a-string” model at larger length scales, which could provide insights into fundamental principles of polymer science. In thi...

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Autores principales: Liu, Zhongguo, Yang, Ze, Chen, Xin, Tan, Rui, Li, Gang, Gan, Zhanhui, Shao, Yu, He, Jinlin, Zhang, Zhengbiao, Li, Weihua, Zhang, Wen-Bin, Dong, Xue-Hui
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2020
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8395638/
https://www.ncbi.nlm.nih.gov/pubmed/34467271
http://dx.doi.org/10.1021/jacsau.0c00014
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author Liu, Zhongguo
Yang, Ze
Chen, Xin
Tan, Rui
Li, Gang
Gan, Zhanhui
Shao, Yu
He, Jinlin
Zhang, Zhengbiao
Li, Weihua
Zhang, Wen-Bin
Dong, Xue-Hui
author_facet Liu, Zhongguo
Yang, Ze
Chen, Xin
Tan, Rui
Li, Gang
Gan, Zhanhui
Shao, Yu
He, Jinlin
Zhang, Zhengbiao
Li, Weihua
Zhang, Wen-Bin
Dong, Xue-Hui
author_sort Liu, Zhongguo
collection PubMed
description [Image: see text] As size-amplified analogues of canonical macromolecules, polymeric chains built up by “giant” monomers represent an experimental realization of the “beads-on-a-string” model at larger length scales, which could provide insights into fundamental principles of polymer science. In this work, we modularly constructed discrete giant polymeric chains using nanosized building blocks (polyhedral oligomeric silsesquioxane, POSS) as basic repeat units through an efficient and robust iterative exponential growth approach, with precise control on molecular parameters, including size, composition, regioconfiguration, and surface functionalities. Their chemical structures were fully characterized by nuclear magnetic resonance spectroscopy, size-exclusion chromatography, and matrix-assisted laser desorption ionization time-of-flight mass spectrometry. With elaborately designed amphiphilic block POSS chains and their analogues made of conventional monomers, the size effects were delicately studied and highlighted. Interesting assembly behaviors emerge as a result of distinct interactions and molecular dynamics. This category of molecules shares general self-assembly characteristics as the conventional counterparts in terms of phase transition and evolution. Meanwhile, it turns out that the monomer size has profound impacts on phase stability, as a trade-off between entropic and enthalpic contributions. It may open up a door for modular and programmable design of interesting materials with complex structures and diverse functions.
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spelling pubmed-83956382021-08-30 Discrete Giant Polymeric Chains Based on Nanosized Monomers Liu, Zhongguo Yang, Ze Chen, Xin Tan, Rui Li, Gang Gan, Zhanhui Shao, Yu He, Jinlin Zhang, Zhengbiao Li, Weihua Zhang, Wen-Bin Dong, Xue-Hui JACS Au [Image: see text] As size-amplified analogues of canonical macromolecules, polymeric chains built up by “giant” monomers represent an experimental realization of the “beads-on-a-string” model at larger length scales, which could provide insights into fundamental principles of polymer science. In this work, we modularly constructed discrete giant polymeric chains using nanosized building blocks (polyhedral oligomeric silsesquioxane, POSS) as basic repeat units through an efficient and robust iterative exponential growth approach, with precise control on molecular parameters, including size, composition, regioconfiguration, and surface functionalities. Their chemical structures were fully characterized by nuclear magnetic resonance spectroscopy, size-exclusion chromatography, and matrix-assisted laser desorption ionization time-of-flight mass spectrometry. With elaborately designed amphiphilic block POSS chains and their analogues made of conventional monomers, the size effects were delicately studied and highlighted. Interesting assembly behaviors emerge as a result of distinct interactions and molecular dynamics. This category of molecules shares general self-assembly characteristics as the conventional counterparts in terms of phase transition and evolution. Meanwhile, it turns out that the monomer size has profound impacts on phase stability, as a trade-off between entropic and enthalpic contributions. It may open up a door for modular and programmable design of interesting materials with complex structures and diverse functions. American Chemical Society 2020-12-09 /pmc/articles/PMC8395638/ /pubmed/34467271 http://dx.doi.org/10.1021/jacsau.0c00014 Text en © 2020 The Authors. Published by American Chemical Society https://pubs.acs.org/page/policy/authorchoice_ccbyncnd_termsofuse.htmlThis is an open access article published under a Creative Commons Non-Commercial No Derivative Works (CC-BY-NC-ND) Attribution License (https://pubs.acs.org/page/policy/authorchoice_ccbyncnd_termsofuse.html) , which permits copying and redistribution of the article, and creation of adaptations, all for non-commercial purposes.
spellingShingle Liu, Zhongguo
Yang, Ze
Chen, Xin
Tan, Rui
Li, Gang
Gan, Zhanhui
Shao, Yu
He, Jinlin
Zhang, Zhengbiao
Li, Weihua
Zhang, Wen-Bin
Dong, Xue-Hui
Discrete Giant Polymeric Chains Based on Nanosized Monomers
title Discrete Giant Polymeric Chains Based on Nanosized Monomers
title_full Discrete Giant Polymeric Chains Based on Nanosized Monomers
title_fullStr Discrete Giant Polymeric Chains Based on Nanosized Monomers
title_full_unstemmed Discrete Giant Polymeric Chains Based on Nanosized Monomers
title_short Discrete Giant Polymeric Chains Based on Nanosized Monomers
title_sort discrete giant polymeric chains based on nanosized monomers
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8395638/
https://www.ncbi.nlm.nih.gov/pubmed/34467271
http://dx.doi.org/10.1021/jacsau.0c00014
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