摘要
通过自由基溶液聚合法和互穿双网络技术(IPDN),合成包含第一网络PAMPS及第二网络PAA的高强度PAMPS/PAA互穿双网络水凝胶(IPDNH),探讨IPDNH的最佳制备条件、抗压缩性能影响因素。结果表明,PAMPS所占比例的提高及PAA交联剂用量的增大都使IPDNH的压缩强度呈现先增大后减小的趋势,而PAMPS交联剂用量的增大,则使压缩强度不断降低。当双网络的单体配比n(AMPS)/n(AA)=3.5/1,PAMPS交联剂用量为2%,引发剂用量为0.2%,PAA交联剂用量为0.5%,引发剂用量0.5%时,IPDNH的抗压缩强度可达58.3MPa,远大于普通水凝胶。
The interpenetrating polymer double networks （IPDN） hydrogels made of PAMPS first-net and PAA second- net was synthesized by solution polymerization and interpenetrating polymer double networks technology. Hydrogels compression strength were also studied by different proportion between two networks, the dosage of crosslinldng agent and initator within double networks of hydrogels, the results showed that the tendency of compression strength was first enhanced and then was weaken when increasing the dosage of PAA and its crosslinkiilg agent, yet the strength was weaken when the dosage of crosslinking agent of PAMPS was increased. When condition were：n（AMPS）/n（AA）= 3.5/1 （mass ratio）, the PAMPS initator consumption 2wt%, the crosslinker consumption 0. 2wt%, the PAA initator consumption 2wt% and the crossiinker consumption 0. 2wt%, the compression strenth of hydrngel will get to the maximum of 58. 3MPa,far more than usual hydrogels.
出处
《化工新型材料》
CAS
CSCD
北大核心
2012年第5期84-86,共3页
New Chemical Materials
基金
福建省自然科学基金资助项目(2009J01319)
泉州市优秀人才培养专项(08A01)
泉州市技术研究与开发项目(2009Z60)
关键词
水凝胶
2-丙烯酰胺基-2-甲基丙磺酸
丙烯酸
互穿双网络
高强度
hydrogel,2-acrylamido-2 methyl propanesulfonic acid,acrylic acid,interpenetrating polymer double net-works（IPDN）, high strength
