Terminal Modification with 1-Adamantylamine to Endow Hyperbranched Polyamidoamine with Thermo-/pH-Responsive Properties

被引:36
作者
Guo, Zhe [1 ]
Zhang, Yongwen [1 ]
Huang, Wei [1 ]
Zhou, Yongfeng [1 ]
Yan, Deyue [1 ]
机构
[1] Shanghai Jiao Tong Univ, Sch Chem & Chem Technol, Shanghai 200240, Peoples R China
基金
中国国家自然科学基金;
关键词
1-adamantylamine; hyperbranched; LCST; polyamidoamines; stimuli-sensitive polymers;
D O I
10.1002/marc.200800450
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
A novel terminal modification agent to endow hyperbranched polyamidoamine (HPAMAM) with thermo-/pH-responsive properties is reported. HPAMAM with terminal vinyl groups is first synthesized and then end-capped by 1-adamantylamine (ADA). The resulting hyperbranched polymer (HPAMAM-ADA) shows interesting thermo-responsive properties in aqueous solution, which have been investigated by UV-vis spectroscopy, optical microscopy, and H-1 NMR spectroscopy. The lower critical solution temperature can be controlled by adjusting the end-capping ratio of ADA. In addition, HPAMAM-ADA exhibits a pH-dependent water solubility. This pH-responsive behavior is also studied.
引用
收藏
页码:1746 / 1751
页数:6
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