Diffusion through membranes of the polyelectrolyte complex of chitosan and alginate

被引：36

作者：

Cárdenas, A

Argüelles-Monal, W

Goycoolea, FM

Higuera-Ciapara, I

Peniche, C

机构：

[1] Ctr Invest Alimentac & Desarrollo AC, Unidad Guaymas, Guaymas 85480, Sonora, Mexico

[2] Ctr Invest Alimentac & Desarrollo AC, Hermosillo 83000, Sonora, Mexico

[3] Univ La Habana, Ctr Biomat, Havana, Cuba

来源：

MACROMOLECULAR BIOSCIENCE | 2003年 / 3卷 / 10期

关键词：

alginate; chitosan; diffusion; polyelectrolyte complex; swelling;

D O I：

10.1002/mabi.200300031

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The swelling of membranes of the polyelectrolyte complex (PEC) between chitosan and alginate shows a similar pattern to that of other PECs. However, if the swelled membranes are dried, a second swelling process is seen which exhibits Fickian behavior. The apparent activation energy was estimated to be 32.8 kJ.mol(-1). The release rate of model solutes was highly dependent on their molecular weight and the pH of the medium.

引用

页码：535 / 539

页数：5

共 12 条

[1] SWELLING OF MEMBRANES FROM THE POLYELECTROLYTE COMPLEX BETWEEN CHITOSAN AND CARBOXYMETHYL CELLULOSE [J].