中华医学超声杂志

应用化学 ›› 1988, Vol. 0 ›› Issue (6): 35-38.

• 研究论文 • 上一篇    下一篇

高锰酸钾引发丙烯腈与木质纤维素接枝共聚的研究

黄继才, 齐庆蕙, 高洁   

  1. 中国科学院广州化学研究所
  • 收稿日期:1987-07-16 修回日期:1988-05-09 出版日期:1988-12-10 发布日期:1988-12-10

STUDIES ON GRAFT COPOLYMERIZATION OF ACRYLONITRILE ONTO LIGNOCELLULOSE USING PERMANGANATE AS INITIATOR

Huang Jicai, Qi Qinghui, Gao Jie   

  1. Guangzhou Institute of Chemistry, Academia Sinica
  • Received:1987-07-16 Revised:1988-05-09 Published:1988-12-10 Online:1988-12-10

PDF

442

被引次数

6

摘要： 研究了用高锰酸钾引发羟丙基马尾松磨石磨木浆粕与丙烯腈的接技共聚反应。得出,木质素对接技反应的影响可能主要来源于它的酚型结构单元。用羟丙基醚化木质素的酚羟基后接枝反应可顺利进行。X-射线衍射结果显示,接技共聚反应有可能渗透到纤维素晶区内部,随接技量的提高,反应具有一定的消晶作用。

关键词: 木质纤维素, 马尾松磨石磨木浆粕, 接技共聚, 丙烯腈

Abstract: The graft copolymerization of aerylonitrile onto Chinese southern pine SGW using KMnO4 as initiator has been carried out to evaluate the effect of lignin on the grafting. It is found that the inhibiting action of lignin might be caused by its phenol structure unit. ln case the phenolic hydroxyls were etherified by propylene oxide the copolymerization was going smoothly: The basic grafting conditions of hydroxypropylated SGW were studied. X-ray analysis showed that the copolymerization took place not only within the amorphous region but in the crystalline region as well, causing a certain degree of decrystallization in cellulose.

Key words: Lignocellulose, Chinese southern pine SGW, Graft copolymerization Acrylonitrile

网站版权 © 应用化学     本网站备案：吉ICP备12000082号