A NOVEL POLYACRYLAMIDE-BASED HYDROGEL CROSSLINKED WITH CELLULOSE ACETATE AND PREPARED BY PRECIPITATION POLYMERIZATION

Química Nova

Rubén O. Muñoz-garcía¹  María E. Hernández¹  Genaro G. Ortiz¹  Víctor V. A. Fernández¹  Martín R. Arellano¹  Juan C. Sánchez-díaz¹ 

关键词: polymer gels;    polyacrylamide-based hydrogels;    cellulose acetate;    crosslinking;    precipitation polymerization;   

DOI  :  10.5935/0100-4042.20150119

来源: SciELO

【 摘 要 】

The synthesis of polyacrylamide-cellulose acetate hydrogels by precipitation polymerization in acetone solution is reported herein. These hydrogels exhibit smaller swelling ratios and larger compression moduli than homo polyacrylamide hydrogels. For cellulose acetate concentrations above 20 wt.%, hydrogels with N,N'-methylenebisacrylamide as a crosslinker exhibit swelling ratios and compression moduli similar to those of the hydrogels without the crosslinker. A possible explanation for this behavior is that cellulose acetate crosslinks polyacrylamide via free-radical reaction. The hydrogels obtained without the N,N'-methylenebisacrylamide crosslinker exhibit compression moduli up to 1.7 MPa, making them suitable for tissue engineering applications such as cartilage replacement.

【 授权许可】

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