| 玻璃化转变在室温附近的一种新型梳状聚合物的合成和表征——侧链分子量为550的聚乙二醇单甲醚 |
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| 引用本文： | 齐力,林云青,王佛松.玻璃化转变在室温附近的一种新型梳状聚合物的合成和表征——侧链分子量为550的聚乙二醇单甲醚[J].化学研究与应用,1999(2). |
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| 作者姓名： | 齐力 林云青 王佛松 |
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| 作者单位： | 中国科学院长春应用化学研究所 |
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| 摘 要： | 以分子量为５５０的聚乙二醇单甲醚为侧链，苯乙烯／马来酸酐共聚物为骨架，合成了苯乙烯／马来酸酐共聚物多缩乙二醇酯，用红外光谱、元素分析、ＤＳＣ、热失重等方法，对合成条件、产物结构和性能进行了研究。结果表明：反应严格按照反应方程进行，精制产物是非晶的梳状聚合物。玻璃化温度为３０．６８℃，分解温度为１２０℃。对动态力学性能及其锂盐复合物离子导电性进行研究表明α转变温度和β转变温度分别是２８℃和－４７．７℃。电导率与温度的依赖关系符合ＶＴＦ方程。室温电导率最高可达４．２×１０－５Ｓ／ｃｍ。
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| 关 键 词： | 马来酸酐 梳状聚合物 导电高分子 VTF行为 动态力学 |
SYNTHESIS AND CHARACTERIZATION OF A NOVEL COMBLIKE POLYMERWITH GLASS
TRANSITION NEAR ROOM TEMPERATURE Poly(ethylene glycol)methyl ether of MW.550 as side
chain |
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| Qi LiLin YunqingWang Fosong.SYNTHESIS AND CHARACTERIZATION OF A NOVEL COMBLIKE POLYMERWITH GLASS
TRANSITION NEAR ROOM TEMPERATURE Poly(ethylene glycol)methyl ether of MW.550 as side
chain[J].Chemical Research and Application,1999(2). |
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| Authors: | Qi LiLin YunqingWang Fosong |
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| Abstract: | By using poly(ethylene glycol)methyl
ether of MW.550 as side chain,poly(styrenecomaleic anhydride) as backbone,multiethylene
glycol poly(styrenecomaleic anhydride)ate was synthesized. Synthetic condition, structure of
product and performance were researched with IR, elemental analysis, DSC, TG. The results
indicated that reaction followed the reaction equation strictly. Refined product was amorphous
comblike polymer. Glass transition point is at 30.68, temperature of decomposition is 120. The
dynamic mechanical properties of PS53 and ionic conductivity of PS53Li salt complexes were
studied. It is found that and transitions are 28 and -47.7 respectively. The relationship between
conductivity and temperature is in accord with VTF equation. The highest ambient conductivity
is 4.210-5S/cm. |
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| Keywords: | Maleic anhydride Comblike polymer Conduction polymer VTF behavior Dynamic mechanics |
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