一种树枝状-线型聚酰胺的合成与表征  

Synthesis and Characterization of Dendritic-Linear Poly(amido)amine

作　　者：王学川[1] 秦媛媛[1,2] 王海军[1] 冯会平[1] 

机构地区：[1]陕西科技大学资源与环境学院,陕西西安710021 [2]陕西农产品加工技术研究院,陕西西安710021

出　　处：《高分子材料科学与工程》2015年第6期41-45,共5页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(21276151);陕西省重点科技创新团队(2013KCT-08);陕西科技大学科研创新团队(TD12-04)

摘　　要：在反应温度130℃,时间7h,投料比1:1.4的条件下采用十二烷基缩水甘油醚对端羧基型树枝状大分子接枝改性,得到一种端羧基型树枝状-线型的加脂复鞣剂。通过红外光谱和凝胶渗透色谱分析表明十二烷基缩水甘油醚与端羧基型树枝状大分子发生了化学反应。利用表面张力仪、X射线衍射仪和热重分析仪分别对反应产物的表面张力、结晶行为、热稳定性能进行了分析。结果表明,当其质量浓度达到0.16g/L时,表面张力降到最低(28.63mN/m),同时其结晶性能和热稳定性均比改性前有所下降,最后,分析了树枝状-线型聚酰胺作为皮革加脂复鞣剂的原理。The carboxyl-terminated dendritic-linear poly(amido)amine fatliquor-retanning agent was synthesized with alkyl glycerol ether and carboxyl-terminated poly(amidoamine)at the temperature of 130℃,time of7 hand mole ratio of 1∶1.4.The results of IR and GPC indicate that the chemical reaction mainly occurs between alkyl glycerol ether and carboxyl-terminated poly(amidoamine).The surface tension,crystallization behavior and thermal property of product were respectively analyzed by the surface tension-mete,X-ray diffraction and thermogravimetric analyzer.The results show that when the concentration is 0.16g/L,the surface tension decreases to the minimum(28.63mN/m);meanwhile compared with unmodified sample,the crystallization properties and thermal stability of product are decreased.The principle of the dendritic-linear polyamide used as leather fatliquoring retanning agent was analyzed.

关 键 词：树枝状-线型聚酰胺 合成 皮革 加脂复鞣剂 

分 类 号：TQ946[化学工程]