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Synthesis and Dielectric Property of Novel Conjugated Polynitriles From Cyanate Ester
Author(s) -
Zhao XiongYan,
Wang MingZhu,
Sun ZhanYing,
Niu ChunMei,
Xiao JiJun,
Tang ErJun
Publication year - 2012
Publication title -
plasma processes and polymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 74
eISSN - 1612-8869
pISSN - 1612-8850
DOI - 10.1002/ppap.201100181
Subject(s) - cyanate ester , cyanate , polymerization , materials science , polymer chemistry , monomer , conjugated system , dielectric , chemical engineering , polymer , composite material , optoelectronics , engineering
A novel conjugated polynitrile based on cyanate ester, plasma‐polymerized 4‐cumylphenol cyanate ester (PPCPCE) is synthesized by plasma polymerization of 4‐cumylphenol cyanate ester (CPCE) for the first time. The structural characterizations show that the plasma polymerization of CPCE proceeded mainly via the opening of π‐bonds of the OCN cyanate ester functional groups which are further on being formed into a large π‐conjugated system[0], which is quite different from the conventional thermal polymerization reaction of cyanate ester monomers, in which the cyanate ester monomer undergoes thermal polycyclotrimerization to form polycyanurate containing triazine ring structure. Moreover, the obtained PPCPCE thin film exhibits a low dielectric constant ( ε r ), which might be a potential new candidate to be used as intermetallic dielectrics in microelectronics.