| 新型天然交联剂氧化海藻酸钠制备及其性能研究 |
| |
| 引用本文： | 王践云,金娟,叶文靖,姚建伟,詹陶,万昌秀. 新型天然交联剂氧化海藻酸钠制备及其性能研究[J]. 化学试剂, 2009, 31(2) |
| |
| 作者姓名： | 王践云 金娟 叶文靖 姚建伟 詹陶 万昌秀 |
| |
| 作者单位： | 四川大学高分子科学与工程学院,四川成都,610065;四川大学吴玉章学院,四川成都,610065 |
| |
| 摘 要： | 用高碘酸钠氧化海藻酸钠(ALG),制备具有二醛结构的部分氧化海藻酸钠(ADA),对醛基化过程中ALG结构、氧化度、醛基含量和粘均分子量进行研究.以剩余NaIO4与KI反应的碘显色法,考察ALG氧化程度,得出氧化动力学曲线;用粘度法得到ADA分子量.结果表明,ALG的氧化度随高碘酸钠量的增加而增加,12 h后在70%左右趋于平缓;氧化反应因为自由基存在,ALG由原来的分子量为28万变为氧化后的1万左右,并不随高碘酸钠用量的变化而变化.制得的ADA与壳聚糖溶液反应.交联生成凝胶,并且凝胶时间与ADA浓度增加而缩短,证明其具有交联作用,为应用于支架材料复合打下基础.
|
| 关 键 词： | 交联剂 海藻酸钠 高碘酸钠 氧化 |
Study on the process for manufacture of a novel natural cross-linked agent alginate dialdehyde |
| |
| WANG Jian-yun,JIN Juan,YE Wen-jing,YAO Jian-wei,ZHAN Tao,WAN Chang-xiu. Study on the process for manufacture of a novel natural cross-linked agent alginate dialdehyde[J]. Chemical Reagents, 2009, 31(2) |
| |
| Authors: | WANG Jian-yun JIN Juan YE Wen-jing YAO Jian-wei ZHAN Tao WAN Chang-xiu |
| |
| Affiliation: | 1.College of Polymer Science and Engineering;Sichuan University;Chengdu 610065;China;2.School of Wu Yuzhang;Chengdu;610065;China |
| |
| Abstract: | To resolve the toxicity of traditional chemical cross-linked agents,this study focused on the structure,oxidation degree,content of aldehyde and viscosity-average molecular weight of sodium alginate(ALG)oxidized by periodate,and alginate dialdehyde with the aldehyde structure.The oxidation degree and kinetics data were determined by iodine colorimetry.The content of ADA aldehyde was measured by the reaction with hydroxylamine hydrochloride.The viscosity method was used to determine the molecular weight of A... |
| |
| Keywords: | cross-linked agent sodium alginate periodate oxidation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
