| 分子内环化对聚乙烯醇交联体系的影响 |
| |
| 引用本文： | 赵大成,高歌,李志英,刘凤岐.分子内环化对聚乙烯醇交联体系的影响[J].高等学校化学学报,2006,27(9):1788-1790. |
| |
| 作者姓名： | 赵大成 高歌 李志英 刘凤岐 |
| |
| 作者单位： | 吉林大学化学学院,长春,130021 |
| |
| 摘 要： | 以聚乙烯醇(PVA)-戊二醛(GA)体系作为研究对象, 系统地研究了分子内环化对凝胶体系的影响, 为水凝胶体系的网络结构评价奠定了一定的实验基础.
|
| 关 键 词： | 聚乙烯醇 水凝胶 内环化 临界凝胶点 平衡溶胀度 |
| 文章编号： | 0251-0790（2006）09-1788-03 |
| 收稿时间： | 11 9 2005 12:00AM |
| 修稿时间： | 2005-11-09 |
Influences of Intramolecular Cyclization on PVA Crosslinked System |
| |
| ZHAO Da-Cheng,GAO Ge,LI Zhi-Ying,LIU Feng-Qi.Influences of Intramolecular Cyclization on PVA Crosslinked System[J].Chemical Research In Chinese Universities,2006,27(9):1788-1790. |
| |
| Authors: | ZHAO Da-Cheng GAO Ge LI Zhi-Ying LIU Feng-Qi |
| |
| Institution: | College of Chemistry, Jilin University, Changchun 130023, China |
| |
| Abstract: | The influences of intramolecular cyclization on the crosslinking reaction processes and the gel's swelling ratio in polyvinyl alcohol (PVA)-glutaraldehyde(GA) system were studied. The results show that the intramolecular cyclization is a very important factor that has influence on the formation of PVA networks. The lower PVA concentration, the higher intramolecular cyclization degree and higher critical gelation mixing molecular molar ratio of CHO to OH(rc) were obtained. The intramolecular cyclization fractions were increased with the decrease of PVA concentration. Equilibrium swelling ratio decreased with the increase of PVA concentration at the same extent of reaction and the increase of crosslinker concentration at the same PVA concentration. The formation of network can be adjusted with the change of the PVA concentration or the crosslinker concentration. |
| |
| Keywords: | PVA Hydrogel Intramolecular cyclization Critical gel point Equilibrium swelling ratio |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《高等学校化学学报》浏览原始摘要信息 |
| 点击此处可从《高等学校化学学报》下载免费的PDF全文 |
