摘要
通过微波加热，使淀粉接枝丙烯腈共聚物在氢氧化钠水溶液中水解，制得高吸水性树脂。对反应时间、微波功率、氢氧化钠溶液体积对水解反应的影响进行了探讨。实验表明只需选择９５Ｗ的功率，加碱８％ＮａＯＨ８０ｍＬ，反应时间为１８ｍｉｎ的反应条件即能制得高吸水性树脂，与常规皂化反应比较，微波加热能大大加快反应速度。
Starchpolyacrylonitrile graft copolymers were hydrolyzed in an aqueous NaOH solution by microwave heating. The super water absorbent was obtained. The effects of reaction time, microwave power and volume of NaOH solution on hydrolysis of the copolymer were studied. Experimental results show that the optimal condition for the absorbent prepared are: low power(95 W), 8% NaOH 80 mL, microwave heating time 18 min. We have compared the results obtained by classical heating and microwave heating. The rate of hydrolysis of the graft copolymer is increased markedly by microwave heating.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1998年第2期127-128,134,共3页
Polymer Materials Science & Engineering
关键词
淀粉
丙烯腈
共聚物
微波加热
接枝共聚
starchpolyacrylonitrile graft copolymer, microwave heating, hydrolysis, super water absorbent
