Synthesis of spherical porous cross-linked glutaraldehyde/poly(vinyl alcohol) hydrogels

被引：3
|
作者：
Araki, Sadao [1 ]
Shirakura, Yuko [1 ]
Suzuki, Harufumi [1 ]
Yamamoto, Hideki [1 ]
机构：
[1] Kansai Univ, Dept Chem Energy & Environm Engn, Fac Environm & Urban Engn, 3-3-35 Yamate Cho, Suita, Osaka 5648680, Japan
来源：
JOURNAL OF POLYMER ENGINEERING | 2016年 / 36卷 / 09期
关键词：
alginate; glutaraldehyde; hydrogel; phase separation; poly(vinyl alcohol); POLYVINYL-ALCOHOL; PVA-ALGINATE; IMMOBILIZATION; MATRIX; CELLS; GEL;
D O I：
10.1515/polyeng-2015-0413
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Spherical glutaraldehyde cross-linked poly(vinyl alcohol) (PVA) hydrogels (G-PVA) were prepared in three steps: gelatification, cross-linking, and removal of alginate. Gelatification was carried out by dropping a solution of alginate, PVA, and glutaraldehyde into a calcium chloride solution to form calcium alginate. Calcium alginate gels were prepared at 20 degrees C, 40 degrees C, 60 degrees C, and 80 degrees C to study the effect of gelatification temperature on the formation of pores on the surface of G-PVA. The effect of the alginate content was studied. PVA and glutaraldehyde were crosslinked by immersion of the gels in a solution of H2SO4 and Na2SO4. The effect of sodium alginate and inorganic salts, such as MgSO4 and K2SO4, on the formation of pores on the surface of G-PVA was confirmed.
引用
收藏
页码：891 / 898
页数：8
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