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Synthesis and characterization of polystyrene‐ block ‐polyisoprene functionalized with aromatic 1,3,4‐oxadiazoles by metal catalyzed reaction
Author(s) -
Hou Sijian,
Gong Xiong,
Chan Wai Kin
Publication year - 1999
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/(sici)1521-3935(19990101)200:1<100::aid-macp100>3.0.co;2-j
Subject(s) - copolymer , polystyrene , polymer chemistry , palladium , catalysis , platinum , polymer , materials science , oxadiazole , hydrosilylation , characterization (materials science) , chemistry , heck reaction , organic chemistry , nanotechnology
A series of polystyrene‐ block ‐polyisoprene functionalized with aromatic oxadiazoles have been synthesized by platinum catalyzed hydrosilation and palladium catalyzed Heck reaction. Transmission electron microscopic studies show that the copolymers exhibit microphase separation with a spherical microdomain. From the time‐of‐flight experimental results, the electron transport process is dispersive with the electron carrier mobilities of ˜10 –4 cm 2 V –1 s –1 , which is comparable to some oxadiazole‐doped polymer films.