Issue 9, 2010
From the journal:

New Journal of Chemistry

Synthesis of pH-responsive hydrophobically-modified hydrogels of poly(methacrylic acid-co-diallylammonium salt) in aqueous solution

Dang-Ge Gao,ab   Jian-Zhong Ma*a  and  Hai-Qing Guo*b  

* Corresponding authors

a College of Resource and Environment, Shaanxi University of Science and Technology, Xi’an, China
E-mail: majz@sust.edu.cn
Fax: +86 29-86132559
Tel: +86 29-86132559

b Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, China
E-mail: guohq@pku.edu.cn
Fax: +86 10-62755702
Tel: +86 10-62755702

Abstract

Hydrophobically-modified hydrogels of poly(methacrylic acid) (P(CC16-MAA) were prepared by the free radical copolymerization of methacrylic acid (MAA) and diallyl methyl hexadecyl ammonium salts (CC16) in aqueous solution. The presence of hydrophobic segments could reduce or increase the degree of swelling significantly at low or high pH, respectively. DSC results indicated that crystalline behavior of poly(diallyl methyl hexadecyl ammonium) salts easily took place in the side chain. The gels showed swelling behaviors that were more sensitive to pH change than PMAA hydrogels and PMAA hydrogels hydrophobically-modified by poly(acrylic acid-2-ethylhexyl ester) (P(AAEHE-MAA)). These properties suggest that P(CC16-MAA) is a potential system suitable for drug delivery.

Graphical abstract: Synthesis of pH-responsive hydrophobically-modified hydrogels of poly(methacrylic acid-co-diallylammonium salt) in aqueous solution

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Article information

DOI
https://doi.org/10.1039/B9NJ00592G
Article type
Paper
Submitted
24 Oct 2009
Accepted
13 Apr 2010
First published
28 May 2010

New J. Chem., 2010,34, 2034-2039

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Synthesis of pH-responsive hydrophobically-modified hydrogels of poly(methacrylic acid-co-diallylammonium salt) in aqueous solution

D. Gao, J. Ma and H. Guo, New J. Chem., 2010, 34, 2034 DOI: 10.1039/B9NJ00592G

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