Design and synthesis of reactive polymers containing perfluorocyclobutyl (PFCB) and hydroxyl moieties for postfunctionalization of PFCB aryl ether polymers
writer：Jiangjian Hong, Liping Bi, Shining Li, Guangyao Jia, Yuanqin Zhu*, Guanghua Li, Zuqiang Huang
keywords：Perfluorocyclobutyl (PFCB), Post-functionalization, Reactive polymers
source：期刊
specific source：Polymer
Issue time：2016年
A novel class of perfluorocyclobutyl (PFCB)-containing reactive polymer with adjustable phenolic hydroxyl
contents (PFCB-OH-xx) has been developed. A serial of PFCB-OH-xx polymers with high molecular
weights (Mw > 100,000) and narrow molecular weight distributions (Mw/Mn < 1.15), were facilely prepared
from 2-methoxy-1,4-bis(trifluorovinyloxy)phenyl via thermal cyclopolymerization and demethylation
reactions. The monomer and polymers were characterized by FT-IR and NMR spectra. PFCB-OH-xx
polymers exhibit good thermal stability and excellent solubility in common organic solvents. Initial
investigation of the use of PFCB-OH-xx polymers as precursors in post-functionalization of PFCB aryl
ether polymers, was successfully accomplished by a nucleophilic ring-opening reaction between the
phenolic hydroxyl groups and 1,3-propanesultone. The degree of functionalization can be readily
controlled by adjusting the hydroxyl contents of PFCB-OH-xx polymers. This work demonstrates that the
designed PFCB-OX-xx polymers could be a class of promising precursor for development of new functional
PFCB aryl ether polymers