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Free Radical‐Induced and Pd(II) Complexes‐Catalyzed Poly(norbornene) Formation
Author(s) -
Yeh AnChi
Publication year - 2003
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.200300135
Subject(s) - chemistry , norbornene , dichloromethane , tetrahydrofuran , toluene , catalysis , polymer chemistry , polymerization , decomposition , medicinal chemistry , organic chemistry , polymer , solvent
The reactions of norbornene polymerization were catalyzed by Pd(CH 3 CN) 4 (BF 4 ) 2 ( 1 ), AIBN ( 2 ), and [{(2,6‐C 6 H 3 ( i Pr) 2 )N=C(Me)} 2 Pd(Me)(CH 3 CN)][BF 4 ] ( 3 ) without using methylalumoxane (MAO). These poly(norbornene)s are readily soluble in organic solvents such as toluene, dichloromethane and tetrahydrofuran. According to the NMR data, the end group of PNA resulting from the AIBN process is found from THF. The PNT resulting from the catalyst ( 1 ) shows bi‐models of GPC bands (M n = 4236 and 66317), two glass transition temperatures (T g = 72.7 and 201.5 °C), as well as two decomposition temperatures (Td = 337 and 460 °C).