Interpenetrating Polymer Networks of Poly(N-vinylacetamide) and Stimuli Responsive Polymers Applied to Novel Amphiphilic Gel

被引：6

作者：

Ajiro, Hiroharu ^{[1
,2
]}

Takemoto, Yukie ^{[2
]}

Akashi, Mitsuru ^{[1
,2
]}

机构：

[1] Osaka Univ, Ctr Adv Med Engn & Informat, Suita, Osaka 5650871, Japan

[2] Osaka Univ, Dept Appl Chem, Grad Sch Engn, Suita, Osaka 5650871, Japan

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2011年 / 11卷 / 08期

关键词：

Interpenetrating Polymer Network; N-vinylacetamide; Amphiphilic Gel; Stimuli Responsive Gel; POLYELECTROLYTE GELS; HYDROGELS; NONPOLAR; BEHAVIOR;

D O I：

10.1166/jnn.2011.4239

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The swelling behaviors of IPN with poly(N-vinylacetamide) (PNVA), which possibly converts from nonionic gel to cationic gel, and the stimuli responsive polymers, such as poly(acrylic acid) (PAAc) and poly(N-isopropylacrylamide) (PNIPAm) were investigated in order to prepare the stimuli responsive amphiphilic gel. When the monomer concentrations were uniformed at the IPN preparation, the obtained PNVA/PAAc IPN showed the pH responsivity with around 100 of swelling ratio at pH 4 to around 1 of swelling ratio at pH 2, although it lost the amphiphilicity due to the lack of swelling in ethanol. On the other hand, the gelation of N-vinylacetamide at 2 M in PNIPAM gel resulted in thermosensitive and amphiphilic hydrogel, that the swelling ratio in EtOH/water (3/7, v/v) also decreased, compared to the value in water at 25 degrees C.

引用

页码：7047 / 7049

页数：3

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