Lipase-catalyzed synthesis and curing of high-molecular-weight polyricinoleate
Lipase-catalyzed synthesis and curing of high-molecular-weight polyricinoleate
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DOI：
10.1002/mabi.200700018
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发表时间：
2007-06-07
影响因子：
4.6
通讯作者：
Matsumura, Shuichi
中科院分区：
文献类型：
--
作者：
Ebata, Hiroki;Toshima, Kazunobu;Matsumura, Shuichi
High-molecular-weight polyricinoleate, with an (M)(w), of 100 600, was enzymatically prepared by the polycondensation of methylricinoleate using immobilized lipase from Pseudomonas cepacia (IM-PC) in bulk in the presence of 4 angstrom molecular sieves at 80 degrees C for 7 d. Polyricinoleate was a viscous liquid at room temperature with a glass transition temperature (T-g) of -74.8 degrees C, showed no crystallinity and was biodegraded by activated sludge. Polyricinoleate was readily cured using a dicumyl peroxide at 170 degrees C for 30 min to produce a chloroform insoluble crosslinked polyricinoleate with a hardness of 50A using durometer A.
