Microstructure and physical properties of a pH-responsive gel based on a novel biocompatible ABA-type triblock copolymer

被引：57

作者：

Castelletto, V ^{[1
]}

Hamley, IW

Ma, YH

Bories-Azeau, X

Armes, SP

Lewis, AL

机构：

[1] Univ Leeds, Dept Chem, Leeds LS2 9JT, W Yorkshire, England

[2] Univ Sussex, Sch Life Sci, Dept Chem, Brighton BN1 9QJ, E Sussex, England

[3] Biocompatibles, Farnham GU9 8QL, Surrey, England

来源：

LANGMUIR | 2004年 / 20卷 / 10期

关键词：

D O I：

10.1021/la049859a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Microstructural and physical properties of a pH-responsive gel based on a novel biocompatible ABA-type triblock copolymer, were examined. The series of samples was characterized by NMR spectroscopy, small-angle neutron scattering (SANS) and rheology measurements. NMR data indicated that gelation was due to hydrophobic interactions between the deprotonated DPA blocks. SANS provided information on the micellar shape and correlation length. Rheometry was used to examine the frequency dependence of the dynamic shear moduli.

引用

页码：4306 / 4309

页数：4

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