青岛科技大学  English 
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教师拼音名称:wanjiaqi

所在单位:材料物理教研室

办公地点:二号实验楼413

性别:男

联系方式:wjiaq@qust.edu.cn

学位:工学博士

毕业院校:哈尔滨工业大学

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Kinetic Studies on Guanidine-Superbase-Promoted Ring-Opening Polymerization of epsilon-Caprolactone

关键字:POLY(EPSILON-CAPROLACTONE); CATALYSTS; COMPLEXES; ALUMINUM

摘要:The kinetics of the ring-opening polymerization of. -caprolactone with butane-1,4-diol as the initiator and 1,5,7-triazabicyclo[ 4.4.0] dec-5-ene as catalyst were examined. A highly efficient and controllable polymerization of. -caprolactone occurred with an activation energy of 22.5 kJ center dot mol-1, which is much lower than that observed with butan-1-ol as the initiator (39.5 kJ center dot mol-1). An intramolecular hydrogen- bonding-assisted mechanism is proposed to explain this lowering of the activation energy.

卷号:30

期号:8

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