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论文类型：期刊论文
发表时间：2014-01-01
发表刊物：JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY
收录刊物：SCIE、EI
卷号：51
期号：1
页面范围：27-32
ISSN号：1060-1325
关键字：In-chain multi-functionalized polymer; 1; 1-Bis(4-dimethylaminophenyl)ethylene; living anionic copolymerization; thermal property
摘要：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.