| 聚乙烯接枝马来酸酐极稀和稀溶液性质的研究 |
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| 引用本文： | 陈竹筠,刘振兴,席世平,高德,黄月娥.聚乙烯接枝马来酸酐极稀和稀溶液性质的研究[J].高分子学报,2000,12(2):176-179. |
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| 作者姓名： | 陈竹筠 刘振兴 席世平 高德 黄月娥 |
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| 作者单位： | 中山大学化学与化工学院!广州510275 |
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| 基金项目： | 广东省自然科学基金资助项目!(基金号 960 0 0 8) |
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| 摘 要： | 该文研究了聚乙烯接枝马来酸酐 (PE g MAH)在极稀和稀浓度范围内的溶液行为 .两个区间内的粘浓关系都呈直线关系 ,但极稀区间的斜率比稀浓度的大得多 .两者的交点C 为临界接触浓度 .随着接枝率的增大 ,比浓粘度逐渐增大 .温度升高也使比浓粘度增大 .
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| 关 键 词： | PE-g-MAH 极稀溶液 稀溶液 粘浓 粘温 |
| 修稿时间： | 1998-11-20 |
A STUDY ON EXTREMELY DILUTE/DILUTE SOLUTION OF POLYETHYLENE GRAFTED MALEIC ANHYDRIDE |
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| CHEN Zhujun,LIU Zhenxing,XI Shiping,GAO De,HUANG Yuee.A STUDY ON EXTREMELY DILUTE/DILUTE SOLUTION OF POLYETHYLENE GRAFTED MALEIC ANHYDRIDE[J].Acta Polymerica Sinica,2000,12(2):176-179. |
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| Authors: | CHEN Zhujun LIU Zhenxing XI Shiping GAO De HUANG Yuee |
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| Institution: | CHEN Zhujun, LIU Zhenxing, XI
Shiping, GAO De, HUANG Yuee;
(Chemistry and Chemical Engineering College,Zhongshan University,Guangzhou |
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| Abstract: | The solution property of polyethylene grafted maleic anhydride in extremely dilute and dilute solutions is studied by the method of viscosity at high temperatures.A very sharp crossover is observed in the variation of the reduced viscosity.η sp /C as a function of the concentration for polyethylene grafted maleic anhydride.This crossover is correlated with the critical concentraion of the polymer C ** in which the macromolecular coils start their contacts.For extremely dilute solutions (CC\+\{**\}),This shows the different morphologies and interactions of macromolecular coils in the two regions.The reduced viscosity also increases when the grafted rate and the temperature increase,but C ** inclines to lower concentration with the increase of temperature. |
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| Keywords: | Polyethylene grafted maleic anhydride (PE-g-MAH) Reduced viscosity Critical concentration Extremely dilute solution |
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