[1]林建明,唐群委,吴季怀.高强度PAM/PVA互穿网络水凝胶的合成[J].华侨大学学报(自然科学版),2010,31(1):41-48.[doi:10.11830/ISSN.1000-5013.2010.01.0041]
　LIN Jian-ming,TANG Qun-wei,WU Ji-huai.Two-Step Synthesis of a High Mechanical Strength Polyacrylamide/Poly (Vinyl Alcohol) Interpenetrating Network Hydrogel[J].Journal of Huaqiao University(Natural Science),2010,31(1):41-48.[doi:10.11830/ISSN.1000-5013.2010.01.0041]
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高强度PAM/PVA互穿网络水凝胶的合成()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第31卷
期数:
2010年第1期
页码:
41-48
栏目:
出版日期:
2010-01-20

文章信息/Info

Title:
Two-Step Synthesis of a High Mechanical Strength Polyacrylamide/Poly (Vinyl Alcohol) Interpenetrating Network Hydrogel
文章编号:
1000-5013(2010)01-0041-08
作者:
林建明; 唐群委; 吴季怀
华侨大学材料物理化学研究所
Author(s):
LIN Jian-ming;  TANG Qun-wei;  WU Ji-huai
Institute of Material Physical Chemistry, Huaqiao University, Quanzhou 362021, China
关键词:
互穿网络水凝胶;  两步水溶液聚合;  聚丙烯酰胺;  聚乙烯醇;  凝胶强度
Keywords:
interpenetrating network hydrogel;  two-step aqueous polymerization;  polyacrylamide;  poly(vinyl alcohol);  hydrogel strengh
分类号:
O648.17
DOI:
10.11830/ISSN.1000-5013.2010.01.0041
文献标志码:
A
摘要:
以聚丙烯酰胺(PAM)为基体,聚乙烯醇(PVA)为增强体,采用两步水溶液聚合法合成具有较高机械强度的PAM/PVA互穿网络水凝胶.研究PVA、交联剂用量对PAM/PVA互穿网络水凝胶拉伸强度及伸长率的影响,探讨水凝胶的应力松弛及析出PVA对水凝胶的增韧机理.实验表明,制备的互穿网络水凝胶具有较高的机械强度和韧性,最高拉伸强度为2.4 MPa,伸长率为3 000%.最后,采用傅里叶红外光谱(FTIR)、扫描电子显微镜(SEM)及X-射线衍射(XRD),对PAM/PVA互穿网络水凝胶的结构与形貌进行表征.
Abstract:
Polyacrylamide/poly(vinyl alcohol) interpenetrating network(PAM/PVA IPN) hydrogel was synthesized using a novel two-step aqueous polymerization method.The influences of PVA contents and crosslinker dosage on stress-strain of PAM/PVA IPN hydrogels were investigated.The tensile measurements showed that the PAM/PVA IPN hydrogel held high mechanical strength and good toughness with a highest tensile strength and elongation of 2.4 MPa and 3 000%,respectively.The strain relaxation of the hydrogels was investigated and the toughening mechanism of separated PVA was detailedly discussed.The structures and morphologies of PAM/PVA IPN hydrogels were characterized and analyzed by FTIR,SEM and XRD.

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相似文献/References:

[1]孙慧,林建明,唐群委,等.聚丙烯酸盐/淀粉半互穿网络水凝胶的两步水溶液合成及性能表征[J].华侨大学学报(自然科学版),2009,30(1):45.[doi:10.11830/ISSN.1000-5013.2009.01.0045]
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备注/Memo

备注/Memo:
福建省科技计划重大专项项目(2004HZ01-3,2007HZ0001-3); 福建省自然科学基金资助项目(2006J0439)
更新日期/Last Update: 2014-03-23