Multi-stimuli responsive poly(ether amine) (PEA) brush fabricated by "thiol-ene" click chemistry

被引：6
|
作者：
Jia, Xinyan [1 ]
Jiang, Xuesong [1 ]
Liu, Rui [2 ]
Yin, Jie [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Chem & Chem Technol, State Key Lab Met Matrix Composite, Shanghai 200240, Peoples R China
[2] Natl Engn Res Ctr Nanotechnol, Shanghai 200240, Peoples R China
来源：
POLYMER | 2010年 / 51卷 / 20期
关键词：
Thiol-ene chemistry; Poly(ether amine) brush; Responsive; POLYMER BRUSHES; SURFACES;
D O I：
10.1016/j.polymer.2010.07.041
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Multi-stimuli responsive poly(ether amine) (PEA) was successfully grafted on the planar silicon through a convenient and efficient way via "thiol-ene" click chemistry. The whole process for fabrication of PEA brush was carefully traced by XPS, AFM, ellipsometer and water contact angle (WCA). The results indicated that PEA brushes with different thickness can be obtained through both photochemical and the thermal processes. The obtained PEA brush in aqueous solution exhibited its response to temperature and pH value. With the increase of pH and temperature, the PEA chain became less hydrophilic and adopted the coil globule transition. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：4511 / 4517
页数：7
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