Conformational changes upon high pressure induced hydration of poly(N-isopropylacrylamide) microgels

被引：34

作者：

Grobelny, Sebastian ^{[1
]}

Hofmann, Christian H. ^{[2
]}

Erlkamp, Mirko ^{[1
]}

Plamper, Felix A. ^{[2
]}

Richtering, Walter ^{[2
]}

Winter, Roland ^{[1
]}

机构：

[1] TU Dortmund Univ, Fac Chem, D-44227 Dortmund, Germany

[2] Rhein Westfal TH Aachen, Inst Phys Chem, D-52056 Aachen, Germany

来源：

SOFT MATTER | 2013年 / 9卷 / 25期

关键词：

HYDROSTATIC-PRESSURE; AQUEOUS-SOLUTIONS; PHASE-TRANSITION; TEMPERATURE; STATE;

D O I：

10.1039/c3sm27653h

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We investigated thermosensitive poly(N-isopropylacrylamide) microgels by high-pressure small angle X-ray scattering and Fourier-transform infrared spectroscopy below and above the collapse temperature. The measurements reveal little pressure-induced deswelling below the volume phase transition temperature and clear re-swelling of the collapsed gels at temperatures above the VPTT.

引用

页码：5862 / 5866

页数：5

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