| 聚电解质溶液浓度区域的划分 |
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| 引用本文： | 蔡佳利,薄淑琴,程镕时.聚电解质溶液浓度区域的划分[J].高分子学报,2004(5):625-627. |
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| 作者姓名： | 蔡佳利 薄淑琴 程镕时 |
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| 作者单位： | 南京大学生命科学学院,南京,210093;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,长春,130022;南京大学化学化工学院,南京,210093;华南理工大学材料科学与工程学院,广州,510641 |
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| 基金项目： | 国家教育部博士点基金 (基金号 2 0 0 3 0 2 840 0 3 )资助项目，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： | 按照De Gennes提出的标度概念，柔性高分子溶液可以划分为稀溶液，亚浓溶液和浓溶液3个区域，它们之间分别以接触浓度C^**和交叠浓度C^**为分界线．钱人元等根据聚苯乙烯溶液激基荧光强度浓度依赖性的实验结果，提出稀溶液区还应细分为极稀溶液和稀溶液两个区域，它的分
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| 关 键 词： | 电离度 聚电解质 浓度区域 |
| 修稿时间： | 2004年5月21日 |
DIVISION OF THE CONCENTRATION RANGES OF POLYELECTROLYTE SOLUTIONS |
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| CAI Jiali b,BO Shuqin,CHENG Rongshi a.DIVISION OF THE CONCENTRATION RANGES OF POLYELECTROLYTE SOLUTIONS[J].Acta Polymerica Sinica,2004(5):625-627. |
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| Authors: | CAI Jiali b BO Shuqin CHENG Rongshi a |
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| Institution: | CAI Jiali+ 1b,BO Shuqin2,CHENG Rongshi 1a,3 |
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| Abstract: | The degree of ionization of polyacrylic acid and pure sodium polyacrylate solutions covering a wide concentration range was deteremined by measuring the pH values of these solutions.The results show that the degrees of ionization are very sensitve to the location of the concentration range of polyelectrolyte solutions.The concept of dynamic contact concentration proposed by Qian Renyuan and the principle of division of flexible neutral polymer solutions into four concentration ranges namely extremely dilute,dilute,semidilute and concentrated solutions are confirmed to be universally applicable to polyelectrolyte solutions. |
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| Keywords: | Degree of ionization Polyelectrolyte Concentration ranges |
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