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Characterization of Plasma‐Polymerized Fused Polycyclic Compounds for Binding Conducting Polymers
Author(s) -
WintherJensen Bjørn,
Norrman Kion,
Kingshott Peter,
West Keld
Publication year - 2005
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.200400045
Subject(s) - polymerization , thiophene , materials science , monomer , polymer chemistry , plasma polymerization , polymer , ring opening polymerization , chemical engineering , chemistry , organic chemistry , composite material , engineering
Summary: An investigation is made of the plasma polymerization of fused polycyclic monomers containing a dioxy‐ring that is fused to an aromatic ring. These molecules provide the basis for very efficient polymerization mechanisms in which only the dioxy‐ring undergoes ring opening during the polymerization with the remaining part of the monomer remaining intact. XPS, ToF‐SIMS, and IR are used to investigate the chemistry of the films produced by plasma polymerization of EDT, which contains a high content of the aromatic group. We find that the plasma‐polymerized films of EDT contain intact thiophene groups with hydrogen in the α position which is able to “co‐polymerize” with thiophene derivatives polymerized by conventional oxidative polymerization, thereby forming a conducting thiophene polymer bonded to the substrate. The durability of the surface modification procedure is demonstrated by micropatterning of PEDT by a lithographic lift‐off technique, where line‐widths down to 1.25 μm are obtained.Microscope picture of a micropattern in poly(3,4‐ethylenedioxythiophene); line width 2.5 μm.