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Indexed by:期刊论文

Date of Publication:2014-01-01

Journal:JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY

Included Journals:SCIE、EI

Volume:51

Issue:1

Page Number:27-32

ISSN No.:1060-1325

Key Words:In-chain multi-functionalized polymer; 1; 1-Bis(4-dimethylaminophenyl)ethylene; living anionic copolymerization; thermal property

Abstract:In-chain multi-functionalized polybutadiene possessing definite geminal dimethylamino groups along polymer backbone, poly(butadiene-co-1,1-bis(4-dimethylaminophenyl)ethylene), has been designed and synthesized via anionic copolymerization of butadiene with 1,1-bis(4-dimethylanimophenyl)ethylene using sec-butyllithium as initiator. Narrow molecular weight distribution copolymers with Mn = 12-28kg/mol (Mw/Mn < 1.10) were characterized by size exclusion chromatography, H-1-NMR spectroscopy and DSC. The amine functionality was readily controlled by the amount of polar modifiers appropriately selected and the polymer molecular weight. The incorporation of 1,1-bis(4-dimethylanimophenyl)ethylene unit resulted in increases in glass transition temperatures of copolymers and had little effect on butadiene microstructure.