利用十二烷基缩水甘油醚(AGE)对聚酰胺-胺(G1 PAMAM-NH2)在碱性条件下改性,制备出一种树枝状-线性聚合物(G1 PAMAM-AGE ).使用FT-IR,1 H NMR、激光粒度仪等手段研究了G1 PAM-AM-AGE的结构和乳液粒径,结果表明产物的接枝率为85％,乳液平均粒径为15．5μm.使用FT-IR、SEM和TG等手段研究了 G1 PAMAM-AGE 处理后的蓝湿革的结构、物理机械性能和热力学性能.结果表明G1 PAMAM-AGE渗入蓝湿革后与胶原蛋白分子间形成了较强的相互作用,使得蓝湿革内胶原纤维束更为紧密,且力学性能和热力学性能均得到了提高.
The dendritic-linear polymer poly(amido)amine-graft-alkyl glycidyl ether (G1 PAMAM-AGE)has been synthesized by the reaction of poly(amido)amine and alkyl glycidyl ether under alkaline conditions in iso-propanol.The structure,grafting rate and average particle size of G1 PAMAM-AGE were investigated by FT-IR,1 H NMR and laser size instrument.The results show that the grafting rate was 85% and the average particle size (APS)of G1 PAMAM-AGE was 1 5 .5μm.The influence of the PAMAM-AGE on the structure,thermal stability and mechanical properties of the wet blue leather were investigated by IR,SEM and TG.The results indicate that the introduced PAMAM-AGE molecules were linked with the collagen fibers by strong interaction, which make the collagen fibers sticking together and improve the thermal stability and mechanical properties of the treated wet blue leather.
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