| 引用本文: | 李银奎.1,4 -二乙炔苯与1,4-丁炔二醇的共聚及表征研究.[J].国防科技大学学报,1991,13(1):38-44.[点击复制] |
| Li Yinkui.The Synthesis and Characterization of Copolymers of 1,4-diethynylbenzene and 1,4-butynediol[J].Journal of National University of Defense Technology,1991,13(1):38-44[点击复制] |
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| 1,4 -二乙炔苯与1,4-丁炔二醇的共聚及表征研究 |
| 李银奎 |
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(材料科学与应用化学系)
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| 摘要: |
| 本文以(Ph3P)2 PdCl2 为催化剂，用各种比例的对二乙炔苯(DEB)与 1，4-丁炔二醇(BD)合成出共聚物及两种单体的均聚物。共聚物为褐黑色，不溶不熔。单体配比中DEB 比例越高，共聚物交联度和比重越大，产率越高，溶胀度越小。单体摩尔比 DEB/BD≥1/2 时，共聚物最良溶剂为苯，溶度参数(δp)为9.15卡0.5? cm-1.5，而DEB/BD=1/5时，共聚物最良溶剂为无水乙醇，δp=12.7卡0.5? cm-1.5，对均聚物及共聚物做了红外光谱表征并讨论了聚合反应机理。 |
| 关键词: 共聚物，1,4-二乙炔苯， 1,4-丁炔二醇，(Ph3P)2 PdCl2 |
| DOI： |
| 投稿日期：1990-02-09 |
| 基金项目: |
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| The Synthesis and Characterization of Copolymers of 1,4-diethynylbenzene and 1,4-butynediol |
| Li Yinkui |
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(Department of Materials Science and Applied Chemistry)
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| Abstract: |
| In this paper，the copolymers of 1,4-diethynylbenzene and 1,4-butynediol with various kinds of ratio and their homopolymers are synthesized using (Ph3P)2 PdCl2 as catalyst. The copolymers are of blackbrown color，insoluble in benzene， CHC13，THF and ethyl alcohol and infusible until 350℃. The higher the ratio of DEB in copolymerization，the larger the density (d425) of copolymers，the higher the yield of copolymers and the less the swellability (θp) and average molecular weights between crosslinks (Mc ). When DEB/BD≥1/2 (mole ratio of monomers)，the best solvent of copolymers is benzene and the solubility parameter(δp)
is 9.15 cal0.5?cm-1.5，when DEB/BD=1/5，the best solvent of copolymer is ethyl alcohol and δp is 12.7 cal0.5? cm-1.5.IR spectra of homopolymers and copolymers are drawn and studied and reaction mechanism of copolymerization is suggested. |
| Keywords: copolymer 1,4-diethynylbenzene,1,4-butynediol,(Ph3P)2 PdCl2 |
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