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Deposition and Characterization of a Low‐ ε r Thin Film Based on Plasma‐Polymerized 4‐Cumylphenol Cyanate Ester
Author(s) -
Zhao XiongYan,
Wang MingZhu,
Sun ZhanYing
Publication year - 2013
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.201200064
Subject(s) - cyanate ester , cyanate , polymerization , materials science , polymer chemistry , monomer , plasma polymerization , deposition (geology) , thin film , plasma , chemical engineering , polymer , composite material , nanotechnology , paleontology , physics , engineering , quantum mechanics , sediment , epoxy , biology
A novel low‐ ε r polycyanurate film, plasma‐polymerized 4‐cumylphenol cyanate ester (PPCPCE) film is prepared by plasma deposition of 4‐cumylphenol cyanate ester (CPCE). Different from the conventional thermal polymerization of cyanate ester monomers, the plasma polymerization of CPCE proceeds mainly via the opening of π‐bonds of the O–CN cyanate ester functional groups which are further formed into a large π‐conjugated system[0]. Structural and morphology characterizations show that a smooth and homogenous PPCPCE film with a large π ‐conjugated system and a high retention of the aromatic ring structure can be obtained at a lower discharge power of 5 W, which gives a low‐ ε r of 2.51. A higher discharge power brings about more severe molecular fragmentation and a significantly rougher film surface.