Investigation of a stimuli-responsive copolymer by atomic force microscopy

被引：48
作者：
Zareie, HM
Bulmus, EV
Gunning, AP
Hoffman, AS
Piskin, E
Morris, VJ
机构：
[1] Hacettepe Univ, Dept Chem Engn, Sch Vocat Technol, TR-06420 Ankara, Turkey
[2] Hacettepe Univ, Dept Chem Engn, TR-06532 Ankara, Turkey
[3] Hacettepe Univ, Bioengn Div, TR-06532 Ankara, Turkey
[4] Inst Food Res, Norwich Lab, Norwich NR4 7UA, Norfolk, England
[5] Univ Washington, Ctr Bioengn, Seattle, WA 98195 USA
来源：
POLYMER | 2000年 / 41卷 / 18期
基金：
英国生物技术与生命科学研究理事会;
关键词：
AFM; stimuli-responsive copolymer;
D O I：
10.1016/S0032-3861(00)00008-2
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The aim of this study was to investigate the stimuli-responsive behaviour of a pH- and temperature sensitive polymer system, i.e. a random copolymer of N-isopropylacrylamide and acrylic acid by atomic force microscopy (AFM). AFM allowed high resolution images of the physical states of the polymer chains at different conditions. Different collapsed and extended chain conformations of a random copolymer were seen over a wide range of pH and temperature. The shapes of both the individual copolymeric chains and globules can be clearly identified. Here we demonstrate the potential of AFM for characterising the stimuli responsive behaviour of such "smart" polymers. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：6723 / 6727
页数：5
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