| 聚乙烯醇非均相法环氧乙烷衍生化反应的研究 |
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| 引用本文： | 吴致宁,杨锦宗.聚乙烯醇非均相法环氧乙烷衍生化反应的研究[J].高分子学报,1995,0(3):296-301. |
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| 作者姓名： | 吴致宁 杨锦宗 |
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| 作者单位： | 大连理工大学精细化工系 116012 |
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| 摘 要： | 采用聚乙烯醇与环氧乙烷非均相加合反应合成了不同环氧乙烷结合量的羟乙基化聚乙烯醇（ＨＥＰＶＡ）．在通过１３Ｃ－ＮＭＲ和ＩＲ对产物进行表征的基础上，讨论了反应与ＰＶＡ空间立构性及结晶性间的关系，证明了ＨＥＰＶＡ中聚氧乙烯链的存在，且其含量增长速率随反应深度的增加而增大．
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| 关 键 词： | 空间立构 聚乙烯醇 羟乙基化 HEPVA EO |
| 收稿时间： | 1992-09-14 |
STUDIES ON HETEROPHASIC ETHOXYLATION OF POLY(VINYL ALCOHOL) |
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| WU Zhi-ning,YANG Jin-zong.STUDIES ON HETEROPHASIC ETHOXYLATION OF POLY(VINYL ALCOHOL)[J].Acta Polymerica Sinica,1995,0(3):296-301. |
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| Authors: | WU Zhi-ning YANG Jin-zong |
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| Institution: | Department of Fine Chemical Engineering; Dalian University of Technology; Dalian 116012 |
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| Abstract: | hrough heterophasic adduction between the hydroxyl group of poly (vinyl alcohol)(PVA) and ethylene oxide (EO),hydroxyethyl poly (vinyl alcohol) (HEPVA) with different contents of combined EO were obtained. The relationship between tacticity of PVA and its ethoxylation reactivity was discussed based on structural characterization of HEPVA by 13C-NMR and IR Spectroscopy.The different rates of increase on the content of polyoxyethylene chain in different reaction stages were also disscused. |
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