用于表面改性的含甲基、三氟丙基和苯基硅氧烷单元的线性/梯状聚硅氧烷嵌段共聚物

Linear/Ladder-Like Polysiloxane Block Copolymers with Methyl-, Trifluoropropyl- and Phenyl- Siloxane Units for Surface Modification.

作者信息

Ostanin Stepan A, Kalinin Alexei V, Bratsyhin Yurij Yu, Saprykina Natalia N, Zuev Vjacheslav V

机构信息

ITMO University, Kronverkskiy pr. 49, 197101 Saint-Petersburg, Russia.

S.V.Lebedev State Institute of Synthetic Rubber, 1, Gapsalskaya st. 1, 198035 Saint-Petersburg, Russia.

出版信息

Polymers (Basel). 2021 Jun 23;13(13):2063. doi: 10.3390/polym13132063.

DOI:10.3390/polym13132063

PMID:34201838

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8271457/

Abstract

Multiblock copolymers containing linear polydimethylsiloxane or polymethyltrifluoropropylsiloxane and ladder-like polyphenylsiloxane were synthesized in a one-step pathway. The functional homopolymer blocks and final multiblock copolymers were characterized using solution and solid-state multinuclear H, C, F, and Si NMR spectroscopy. It was shown that the ladder-like block contains silanol units, which influence the adhesion properties of multiblock copolymers and morphology of their casted films. The adhesion to metals and mechanical properties of multiblock copolymers were tested. The SEM study of casted films of multiblock copolymers shows the variety of formed morphologies, including long-strip-like or globular.

摘要

通过一步法合成了含有线性聚二甲基硅氧烷或聚甲基三氟丙基硅氧烷以及梯形聚苯基硅氧烷的多嵌段共聚物。使用溶液和固态多核氢、碳、氟和硅核磁共振光谱对功能性均聚物嵌段和最终的多嵌段共聚物进行了表征。结果表明，梯形嵌段含有硅醇单元，这会影响多嵌段共聚物的粘附性能及其流延膜的形态。测试了多嵌段共聚物对金属的粘附性和机械性能。多嵌段共聚物流延膜的扫描电子显微镜研究显示出多种形成的形态，包括长条状或球状。