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投稿时间：2008-09-08
投稿时间：2008-09-08
中文摘要: 以丝素蛋白纤维为填充材料，采用自由基聚合的方法制备复合聚N-异丙基丙烯酰胺(PNIPPAm)水凝胶，研究复合水凝胶的黏弹性能、溶胀性能和反复溶胀 收缩性能。结果表明：丝素蛋白纤维的加入改善了复合水凝胶的力学性能，其平衡溶胀率不仅与温度有关，而且与丝素蛋白纤维的含量有关。此外，处在表面的丝素蛋白纤维与水凝胶之间存在间隙，在反复溶胀-收缩过程中可以作为输水通道，有利于水分子进出，提高了PNIPPAm水凝胶对温度的响应速率并使其溶胀-收缩重复性更好。
中文关键词: 聚N-异丙基丙烯酰胺 丝素蛋白纤维 复合水凝胶 黏弹性 响应速率
Abstract:The composite poly(N-isopropylacrylamide) hydrogel was prepared by radical polymerization via filling of fibroin fiber. The viscoelasticity, swelling and oscillating swelling deswelling property of composite hydrogel were investigated. Results show that the incorporation of fibroin fiber can improve the mechanical property, and its equilibrium swelling ratio of composite hydrogel is dependent on both temperature and the content of fibroin fiber. Moreover, there are gaps between the fibroin fiber and hydrogel on hydrogel surface, and they act as the transmission channels which are favorable for the outflow and inflow of water from the interior hydrogel in the course of oscillating swelling deswelling. Thus, the response rate and oscillating swelling-deswelling property of composite hydrogel are improved.
keywords: poly(N-isopropylacrylamide) fibroin fiber composite hydrogel viscoelasticity response rate
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基金项目:浙江省科技厅面上科研工业项目资助(2008C21004)
| 作者 | 单位 | |
| 刘羿君 | 浙江理工大学教育部先进纺织材料与制备技术重点实验室 | yijunliuww@yahoo.com.cn |
| 王建君 | 浙江理工大学教育部先进纺织材料与制备技术重点实验室 | |
| 鲍学骞 | 浙江理工大学教育部先进纺织材料与制备技术重点实验室 | |
| 封云芳 | 浙江理工大学教育部先进纺织材料与制备技术重点实验室 |
| Author Name | Affiliation | |
| yijunliuww@yahoo.com.cn | ||
引用本文：
刘羿君,王建君,鲍学骞,封云芳.丝素蛋白纤维/聚N-异丙基丙烯酰胺复合水凝胶的性能[J].功能高分子学报,2009,(1):55-59.
.Properties of Fibroin Fiber/Poly(N-isopropylacrylamide)Composite Hydrogel[J].Journal of Functional Polymers,2009,(1):55-59.
刘羿君,王建君,鲍学骞,封云芳.丝素蛋白纤维/聚N-异丙基丙烯酰胺复合水凝胶的性能[J].功能高分子学报,2009,(1):55-59.
.Properties of Fibroin Fiber/Poly(N-isopropylacrylamide)Composite Hydrogel[J].Journal of Functional Polymers,2009,(1):55-59.
