Swelling and mechanical properties of polymer gels with cross-linking gradient

被引：40

作者：

Fernandes, Paulo A. L. ^{[1
]}

Schmidt, Stephan ^{[1
]}

Zeiser, Michael ^{[2
]}

Fery, Andreas ^{[2
]}

Hellweg, Thomas ^{[2
]}

机构：

[1] Max Planck Inst Colloids & Interfaces, D-14424 Potsdam, Germany

[2] Univ Bayreuth, D-95440 Bayreuth, Germany

来源：

SOFT MATTER | 2010年 / 6卷 / 15期

关键词：

N-ISOPROPYLACRYLAMIDE;

D O I：

10.1039/c0sm00275e

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 report a novel approach to model the temperature dependence of the volume and elastic modulus of polymer gels with a cross-linking gradient based on the well-known Flory-Rehner (FR) theory. The proposed model consists of dividing the inhomogeneous polymer gel into an arbitrary number of independent and homogeneous layers that are treated independently by the FR approach. Experimental measurements of volume and elastic modulus with atomic force microscopy (AFM) on PNIPAM microgels, unexplained by the classical FR model, are in good agreement with the proposed model.

引用

页码：3455 / 3458

页数：4

共 34 条

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