摘要
The polyphosphates with pendent chloroethyloxy group were synthesized by using PPL and PPL immobilized on silica nanoparticles as catalyst, respectively. The results indicated that the reaction conditions such as enzyme concentration, temperature and reaction time exerted a considerable influence on the molecular weight and yield of the polyphosphates and in the case of using immobilized PPL as catalyst, relatively higher molecular weight( M n) could be obtained. Recycle use of the immobilized PPL was also preliminarily investigated.
The polyphosphates with pendent chloroethyloxy group were synthesized by using PPL and PPL immobilized on silica nanoparticles as catalyst, respectively. The results indicated that the reaction conditions such as enzyme concentration, temperature and reaction time exerted a considerable influence on the molecular weight and yield of the polyphosphates and in the case of using immobilized PPL as catalyst, relatively higher molecular weight( M n) could be obtained. Recycle use of the immobilized PPL was also preliminarily investigated.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2004年第9期1780-1782,共3页
Chemical Journal of Chinese Universities
基金
国家重点基础研究发展规划 (批准号 :G19990 64 70 3 )资助
关键词
聚磷酸酯
猪胰脂肪酶
酶促开环聚合
纳米硅球固定化酶
Polyphosphates
PPL
Enzyme-promoting ring-opening polymerization
Immobilized enzyme on silica nanoparticle
