功能化低聚物胍盐阳离子单体材料合成与表征  

Synthesis and characterization of the functional oligomer guanidine salt cationic monomer

作　　者：杨贵涵 潘远凤[1] 张家佳[1] 

机构地区：[1]广西大学化学化工学院,广西石化资源加工及过程强化技术重点实验室,南宁530004

出　　处：《化工新型材料》2015年第2期129-131,160,共4页New Chemical Materials

基　　金：国家自然科学基金资助项目(21306027);广西自然科学基金资助项目(2013GXNSFCA019004);广西大学科研基金资助项目(GXZ090126);广西石化资源加工及过程强化技术重点实验室主任课题基金资助项目(2012Z04)

摘　　要：利用化学交联的键合作用,将马来酸酐(MA)接枝到用熔融缩聚的方法合成的带有胍基的聚六亚甲基盐酸胍(PHGH)上,得到含有乙烯基和叔胺基的低聚物阳离子季铵盐单体(M-PHGH)。利用FT-IR、TG等手段对所制备低聚物阳离子季铵盐单体(M-PHGH)的进行了结构和热稳定性的表征和测试。同时,采用用紫外分光光度计测定MA反应转化率,实验考察了不同时间、不同反应物配比、不同温度对MA反应转化率的影响。实验表明:当MA和PHGH的摩尔比为1.2∶1,反应温度为45℃,反应时间为20h时,MA的转化率可以达到92.4%,且经过结构表征可知,MA已成功键合在PHGH上而获得低聚物阳离子季铵盐单体(M-PHGH),其热稳定性相比PHGH有一定程度的提高。Poly（methylene guanidine hydrochloride）（PHGH）with guanidine group was synthesized via melt polycondensation,and then grafted with maleic anhydride（MA）by chemical crosslinking to get oligomers cationic quaternary ammonium salt monomer（M-PHGH）containing group of vinyl and tertiary amine.FT-IR,TG and other methods were used to characterize the structure and thermal stability of M-PHGH.Meanwhile,ultraviolet spectrophotometer（UV）was employed to determine the reaction conversion of MA.The influence of time,reactant ratio,temperature on the reaction conversion of MA was investigated as well.As a result,the reaction conversion of MA can reach 92.4% when the reaction of MA and PHGH（1.2∶1,mol/mol）was carried out at 45℃ for 20 h.Furthermore,the construction characterization showed that MA had been successfully bonded on the PHGH to get M-PHGH,and TG demonstrated that M-PHGH possessed better thermal stability than PHGH.

关 键 词：聚六亚甲基盐酸胍 马来酸酐 化学交联 季铵盐 

分 类 号：O633.5[理学—高分子化学]