| DILUTE SOLUTION BEHAVIOR OF CHITOSAN IN DIFFERENT ACID SOLVENTS |
| |
| 引用本文： | 王伟,王利华,秦汶. DILUTE SOLUTION BEHAVIOR OF CHITOSAN IN DIFFERENT ACID SOLVENTS[J]. 高分子科学, 1994, 0(1): 87-90 |
| |
| 作者姓名： | 王伟 王利华 秦汶 |
| |
| 作者单位： | Laboratory of Polymer Physics，Changchun Institute of Applied Chemistry，Academia Sinica，Changchun 130022，Laboratory of Polymer Physics，Changchun Institute of Applied Chemistry，Academia Sinica，Changchun 130022，Laboratory of Polymer Physics，Changchun Institute of Applied Chemistry，Academia Sinica，Changchun 130022 |
| |
| 基金项目： | The project is supported by the National Natural Science Foundation of China |
| |
| 摘 要： | Dilute solution behavior of chitosan was studied in formic acid, acetic acid, lactic acid andhydrochloric acid aqueous solution under different pH values. The reduced viscosities, η_(sp)/C,ofchitosan solutions were dependent on the properties of acid and pH value of solvents. For a givenchitosan concentration, η~(sp)/C decreased with the increase of acid concentration, or decreasing pHof solvent, indicating shielding effect of excessive acid similar to adding salt into solution. Thestabilities of dilute chitosan solution in formic acid and lactic acid were better than that in acetic acid and hvdrochloric acid.
|
| 收稿时间： | 1992-10-06 |
DILUTE SOLUTION BEHAVIOR OF CHITOSAN IN DIFFERENT ACID SOLVENTS* |
| |
| WANG Wei,WANG Lihua,QIN Wen. DILUTE SOLUTION BEHAVIOR OF CHITOSAN IN DIFFERENT ACID SOLVENTS*[J]. Chinese Journal of Polymer Science, 1994, 0(1): 87-90 |
| |
| Authors: | WANG Wei WANG Lihua QIN Wen |
| |
| Affiliation: | Laboratory of Polymer Physics; Changchun Institute of Applied Chemistry; Academia Sinica; Changchun |
| |
| Abstract: | Dilute solution behavior of chitosan was studied in formic acid, acetic acid, lactic acid andhydrochloric acid aqueous solution under different pH values. The reduced viscosities, ηsp/C,ofchitosan solutions were dependent on the properties of acid and pH value of solvents. For a givenchitosan concentration, ηsp/C decreased with the increase of acid concentration, or decreasing pHof solvent, indicating shielding effect of excessive acid similar to adding salt into solution. The stabilities of dilute chitosan solution in formic acid and lactic acid were better than that in acetic acid and hydrochloric acid. |
| |
| Keywords: | Chitosan Dilute solution properties Dependence of solvent with differen pH values |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《高分子科学》浏览原始摘要信息 |
|
点击此处可从《高分子科学》下载全文 |
