【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。更多还原

【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.更多还原