| 一种聚四氟乙烯毛细管Ubbelodhe粘度计 |
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| 引用本文： | 蔡佳利,薄淑琴,秦汶,严小虎,程镕时.一种聚四氟乙烯毛细管Ubbelodhe粘度计[J].应用化学,2001,18(5):377-379. |
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| 作者姓名： | 蔡佳利 薄淑琴 秦汶 严小虎 程镕时 |
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| 作者单位： | 南京大学，华南理工大学，中科院长春应化所，中国科学院长春应化所，中国科学院长春应用化学研究所 |
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| 基金项目： | 国家攀登计划“高分子凝聚态基本物理问题”(97056118)和国家教委博士点基金、中国科学院长春应用化学研究所高分子物理与化学国家重点实验室基金资助项目 |
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| 摘 要： | 改进型乌式粘度计;高分子溶液;一种聚四氟乙烯毛细管Ubbelodhe粘度计;聚电解质粘度效应
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| 关 键 词： | 改进型乌式粘度计 高分子溶液 一种聚四氟乙烯毛细管Ubbelodhe粘度计 聚电解质粘度效应 |
| 文章编号： | 1000-0518(2001)05-0377-03 |
| 收稿时间： | 2009-06-29 |
| 修稿时间： | 2001年2月8日 |
A Ubbelodhe Viscometer withPolytetrafluoroethylene Capillary |
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| Abstract: | A modified Ubbelodhe viscometer with polytetrafluoroethylene capillary has beenfabricated. The newly constructed viscometer was tested and compared with conventional glassviscometer by measuring the aqueous solution viscosity of a partially hydrolyzed polyacrylamidesample covering a considerable wide concentration range down to extremely dilute region. Theinterference from polymer adsorption onto the capillary inner wall surface on the viscositymeasurements is completely avoided when the new modified viscosimeter is used instead of commonglass viscometer. The experimental results indicate that the so called “polyelectrolyte effect” ofsolution viscosity is just only an apparent phenomenon due to polymer adsorption. |
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| Keywords: | modified Ubbelodhe viscometer PTFE capillary polymer solution polyelectrolyteviscosity effect |
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