Zein-poly(N-isopropylacrylamide) conjugates

被引：13

作者：

Bromberg, L ^{[1
]}

机构：

[1] MIT,DEPT CHEM,CAMBRIDGE,MA 02139

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 1997年 / 101卷 / 04期

关键词：

D O I：

10.1021/jp962090t

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：

Stable cross-linked gels were synthesized by polymerization of N-isopropylacrylamide (NIPA) blended with 3. Seed protein (zein) and 4,4'-diazido-2,2'-stilbenedisulfonic acid (DAS) in dimethyl sulfoxide following irradiation. Grafting of DAS-zein chains on polyNIPA backbone was proposed. The gels were shown to undergo discontinuous volume transition at around 32 degrees C corresponding to lower critical solution temperature of NIPA. The gel swelling was pH-sensitive. Sharp maximum on viscosity vs temperature plots was observed in suspensions of the gel particles at 32 degrees C due to interparticle network formation caused by hydrophobic interactions between polyNIPA domains.

引用

页码：504 / 507

页数：4

共 29 条

[1] HIGH-RESOLUTION C-13 NUCLEAR-MAGNETIC-RESONANCE STUDIES OF MAIZE PROTEINS [J].