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Synthesis and decrosslinking of networked polymers having zwitterion structure consisted by cyclic amidine and isothiocyanate
Journal of Polymer Science Part A: Polymer Chemistry ( IF 2.869 ) Pub Date : 2019-09-30 , DOI: 10.1002/pola.29485
Akira Yamauchi 1 , Yoshiaki Yoshida 1 , Takeshi Endo 1
Affiliation  

We have already found that the polymers, which are obtained by the polymerization of 4‐vinylphenyl isothoiocyanate after the zwitterion formation with cyclic amidines, are networked through the ionic interaction among the zwitterions becoming insoluble to various solvents. We report here on the results of the reaction of nucleophilic reagents such as amines and alcohols with the zwitterionic adduct to investigate about the decrosslinking through the resolution of ionic interactions. In the model reactions of amines and alcohols with the zwitterion compounds, which were consisted of the phenyl isothiocyanate and cyclic amidines, the reaction of nucleophilic reagents and zwitterionic adducts having methyl group at the 2‐position of the amidine proceed quantitatively. Based on the model reaction, such nucleophilic addition was applicable to decrosslinking reaction of the networked polymers containing the zwitterion structure in the side‐chain. © 2019 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2019, 57, 2131–2137

中文翻译:

具有两性离子结构的网状聚合物的合成和去交联是由环am和异硫氰酸酯组成

我们已经发现,两性离子与环with形成两性离子后,通过4-乙烯基苯基异硫氰酸酯的聚合反应获得的聚合物通过两性离子之间的离子相互作用形成网络,这些离子变得对各种溶剂均不溶。我们在此报告亲核试剂(如胺类和醇类)与两性离子加合物的反应结果,以通过离子相互作用的分解研究去交联。在胺和醇与两性离子化合物的模型反应中,两性离子化合物由异硫氰酸苯酯和环状am组成,亲核试剂和在the的2位具有甲基的两性离子加合物的反应是定量进行的。根据模型反应,这种亲核加成反应适用于在侧链中包含两性离子结构的网络化聚合物的去交联反应。分级为4 +©2019 Wiley Periodicals,Inc.J.Polym。科学,A部分:Polym。化学 2019,57,2131–2137
更新日期:2019-09-30
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