| 聚乙烯醇分子中键合形式的研究 |
| |
| 引用本文： | 宋建华,何永钙,罗淑玲.聚乙烯醇分子中键合形式的研究[J].广州大学学报(自然科学版),2006,5(3):22-25. |
| |
| 作者姓名： | 宋建华 何永钙 罗淑玲 |
| |
| 作者单位： | 广州大学,化学与化工学院,广东,广州,510006 |
| |
| 基金项目： | 广州大学校科研和教改项目 |
| |
| 摘 要： | 首先通过聚乙酸乙烯酯(PVAc)在氢氧化钠(NaOH)和甲醇(CH3OH)溶液中醇解获得聚乙烯醇,再通过粘度法测定聚乙烯醇和被高碘酸盐分解后物质的摩尔质量,从而计算出聚乙烯醇由“头尾相接”和“头碰头”两种键合方式的比率,发现在30℃时“头碰头”的几率大概为15%.
|
| 关 键 词： | 聚乙烯醇(PVA) 粘度法 特性粘度 摩尔质量 键合几率 |
| 文章编号： | 1671-4229(2006)03-0022-04 |
| 收稿时间： | 2006-02-25 |
| 修稿时间： | 2006-03-21 |
A research on the linkage of polyvinyl alcohol molecule |
| |
| SONG Jian-hua,HE Yong-gai,LUO Shu-ling.A research on the linkage of polyvinyl alcohol molecule[J].Journal og Guangzhou University:Natural Science Edition,2006,5(3):22-25. |
| |
| Authors: | SONG Jian-hua HE Yong-gai LUO Shu-ling |
| |
| Institution: | School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China |
| |
| Abstract: | Polyvinyl alcohol(PVA) was prepared by means of alcoholysising the polyvinyl acetate(PVAC) in sodium hydroxide and methanol;the molar mass of the PVA was determined by means of viscosity,and the PVA was decomposed by periodate;lastly,the molar mass of the product was determined by the same method,accordingly,and the ratio of the head-to-tail linkage and the head-to-head linkage of PVA was figured out.The result was that the probability of head-to-head linkage was about fifteen percentage at thirty centigrade. |
| |
| Keywords: | polyvinyl alcohol means of viscosity intrinsic viscosity molar mass linked ratio |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
