| 水溶性高聚物聚丙烯酰胺的稀溶液性质(Ⅰ) |
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| 引用本文： | 薄淑琴,杨虹,郝克君.水溶性高聚物聚丙烯酰胺的稀溶液性质(Ⅰ)[J].高分子学报,1992,0(1):9-14. |
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| 作者姓名： | 薄淑琴 杨虹 郝克君 |
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| 作者单位： | 中国科学院长春应用化学研究所高分子物理开放实验室 130022 |
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| 摘 要： | 本工作利用光散射和粘度方法,使用辐射聚合聚丙烯酰胺(PAAM)的级分样品,研究了在较宽分子量范围(104-107)内PAAM的特性粘数,分子尺寸及第二维利系数对重均分子量的依赖性.从实验上得到了PAAM在0.2mol/lNaCl水溶液中的均方旋转半径与均方末端距之间的关系及高分子-溶剂相互作用参数.
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| 关 键 词： | 聚丙烯酰胺 溶液性质 光散射 |
| 收稿时间： | 1990-03-06 |
STUDY ON BEHAVIOR OF POLYACRYLAMIDE IN DILUTE AQUEOUS SOLUTION (I) |
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| BAO Shu-qin,YANG Hong,HAO Ke-jun.STUDY ON BEHAVIOR OF POLYACRYLAMIDE IN DILUTE AQUEOUS SOLUTION (I)[J].Acta Polymerica Sinica,1992,0(1):9-14. |
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| Authors: | BAO Shu-qin YANG Hong HAO Ke-jun |
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| Institution: | Polymer Physics Laboratory; Changchun Institute of Applied Chemistry; Academia Sinica; Changchun; Post code: 130022 |
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| Abstract: | The properties of fractionated polyacrylamide(PAAM, Mw 104-107) in dilute aqueous salt solutions were studied by light scattering and viscometric methods. The relationships among intrinsic viscosity, mean square redius of gyration )z, the second virial coefficient A2 and weight average molecular weight were observed respectively. Additional results PAAM in 0.2 mol/1 NaCl aqueous solution were also obtained from a excluded volume exponent v = 0.566 A2: The ratio of the mean square end to end distance to 2>2 equals 6.68 and the interaction parameter between macromolecules and solvents is 0.489. |
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