| 不同分子量丙烯腈-丙烯酰胺共聚物溶液的流变性研究 |
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| 引用本文： | 吴雪平,凌立成,吕春祥,吴刚平,李永红,李开喜,宋燕,张睿,贺福.不同分子量丙烯腈-丙烯酰胺共聚物溶液的流变性研究[J].新型炭材料,2004,19(2):103-108. |
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| 作者姓名： | 吴雪平 凌立成 吕春祥 吴刚平 李永红 李开喜 宋燕 张睿 贺福 |
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| 作者单位： | 中国科学院山西煤炭化学研究所,炭材料重点实验室,山西,太原,030001 |
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| 基金项目： | 中国科学院创新方向性项目(KGCX2 SW 204)，山西省自然科学青年科技研究基金(20021013)，太原市科技启明星计划 ~~ |
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| 摘 要： | 将不同分子量的丙烯腈（AN）与丙烯酰胺（AM）的共聚物溶解于二甲亚砜（DMSO）中，获得聚丙烯腈（PAN）溶液。采用旋转粘度计和锥板流变仪，从非牛顿指数n、流动活化能△Eq、结构粘度指数△ηa和弹性模量G等方面比较了不同分子量PAN溶液的流变性能。结果表明，分子量高的PAN溶液的表观粘度对应力变化敏感，分子理低的PAN溶液的表现粘度对温度的变化敏感，无论是从粘性还是从弹性角度看，低分子量PAN溶液的物理稳定性好。
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| 关 键 词： | 分子量 丙烯腈 丙烯酰胺 共聚物溶液 流变性 稳定性 聚丙烯腈 |
| 文章编号： | 1007-8827(2004)02-0103-06 |
| 修稿时间： | 2003年10月17 |
Rheology of poly(acrylonitrile-acrylamide) solutions with different molecular weights |
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| WU Xue-ping,LING Li-cheng,LU Chun-xiang,WU Gang-ping,LI Yong-hong,LI Kai-xi,SONG Yan,ZHANG Rui,HE Fu e Academy of Sciences,Taiyuan,China.Rheology of poly(acrylonitrile-acrylamide) solutions with different molecular weights[J].New Carbon Materials,2004,19(2):103-108. |
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| Authors: | WU Xue-ping LING Li-cheng LU Chun-xiang WU Gang-ping LI Yong-hong LI Kai-xi SONG Yan ZHANG Rui HE Fu e Academy of Sciences Taiyuan China |
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| Affiliation: | WU Xue-ping,LING Li-cheng,LU Chun-xiang,WU Gang-ping,LI Yong-hong,LI Kai-xi,SONG Yan,ZHANG Rui,HE Fu e Academy of Sciences,Taiyuan030001,China) |
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| Abstract: | The rheological properties of poly(acrylonitrile-acrylamide) solutions with different molecular weights obtained by dissolving copolymers of acrylonitrile(AN) with acrylamide(AM) into dimethylsulfoxide(DMSO) were characterized by Non-Newtonian viscous index, activation energy of viscous flow, structure viscosity index and modulus. It is found that viscosities of the solutions with high molecular weight are more sensitive to shear rate and less sensitive to temperature than those with low molecular weight. The solutions with low molecular weight show better stability in repect of viscosity and elasticity than those with high molecular weight. |
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| Keywords: | Copolymers Acrylonitrile Acrylamide Rheology Stability |
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