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Soluble and film‐formable homopolymer tethering side‐opened cage silsesquioxane pendants
Author(s) -
Sato Yuri,
Imoto Hiroaki,
Naka Kensuke
Publication year - 2020
Publication title -
journal of polymer science
Language(s) - English
Resource type - Journals
eISSN - 2642-4169
pISSN - 2642-4150
DOI - 10.1002/pol.20200161
Subject(s) - silsesquioxane , crystallinity , side chain , polymer chemistry , bifunctional , thermal stability , materials science , macromonomer , polymer , monomer , chemical engineering , chemistry , organic chemistry , composite material , catalysis , engineering
Cage silsesquioxane, denoted as polyhedral oligomeric silsesquioxane (POSS) has high crystallinity to readily cause aggregation when it is induced into polymer side chain. In this work, side‐opened POSS was employed to construct a bifunctional monomer for cyclopolymerization. The collapsed symmetry of the POSS core effectively reduced the crystallinity to realize homogeneous films, while a traditional POSS homopolymer formed turbid and brittle films. The obtained film showed high transparency and thermal stability.