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Preparation of syndiotactic poly(4‐ tert ‐butyldimethyl‐silyloxystyrene) and poly(4‐hydroxystyrene)
Author(s) -
Kim Youngjo,
Do Youngkyu
Publication year - 2000
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/1521-3927(20001101)21:16<1148::aid-marc1148>3.0.co;2-e
Subject(s) - polystyrene , tacticity , polymer , thermal stability , polymer chemistry , catalysis , materials science , chemistry , organic chemistry , polymerization
Syndiospecific silyloxy‐functionalized polystyrene with high molecular weight was prepared using a (pentamethylcyclopentadienyl)titanatrane/MMAO catalyst system. The resulting polymer is soluble in polar organic solvents such as THF and shows good thermal stability. In addition, the compound Ni(acac) 2 was used as a catalyst in preparing authentic atactic polymer of 4‐ tert ‐butyldimethylsilyloxystyrene under the same conditions. The chemical transformation of syndiospecific poly(4‐ tert ‐butyldimethylsilyloxystyrene) also gave a new polar polymer, namely syndiotactic poly(4‐hydroxystyrene) which is unattainable by traditional synthetic methods.