| 纳米卡拉胶微球的制备 |
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| 引用本文： | 李桂村,王卫伟,张志煜. 纳米卡拉胶微球的制备[J]. 青岛科技大学学报(自然科学版), 2003, 24(1): 45-47 |
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| 作者姓名： | 李桂村 王卫伟 张志煜 |
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| 作者单位： | 青岛科技大学纳米材料研究所 山东青岛266042(李桂村，王卫伟)，青岛科技大学纳米材料研究所 山东青岛266042(张志焜) |
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| 摘 要： | 利用 Span 80作表面活性剂 ,正丁醇作助表面活性剂制得反相微乳液。将天然海洋高分子κ-卡拉胶进行酸水解使其分子量降低 ,通过反相乳液法对水解后的κ-卡拉胶进行分散并用甲醛和戊二醛进行交联 ,制备卡拉胶微球 ,利用 TEM、IR研究了卡拉胶微球的粒度和分子结构变化。 TEM显示 :低分子量的卡拉胶能够得到纳米级的卡拉胶微球 ,粒径约为 40 nm,添加正丁醇有助于卡拉胶的分散。 IR光谱证明了甲醛和戊二醛在卡拉胶微球内部发生了羟醛缩合反应 ,产生了交联
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| 关 键 词： | κ-卡拉胶 反相乳液法 微球 制备 |
| 文章编号： | 1001-4764(2003)01-0045-03 |
| 修稿时间： | 2001-11-05 |
Preparation of Carrageenan Microspheres |
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| LI Gui cun,WANG Wei wei,ZHANG Zhi kun. Preparation of Carrageenan Microspheres[J]. Journal of Qingdao University of Science and Technology:Natutral Science Edition, 2003, 24(1): 45-47 |
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| Authors: | LI Gui cun WANG Wei wei ZHANG Zhi kun |
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| Abstract: | Microemulsifiable solution was obtained with Span 80 as a surfactant and n butanol as a cosurfactant. After acidichydrolysis, the solubility and viscosity of κ Carrageenan solution decreased. κ Carrageenan was dispersed into microspheres by the means of emulsion method. The radius and chemical structure of microspheres were characterized by TEM and XRD. TEM experiments showed that the particles was about 40 nm. The size distribution of κ Carrageenan was promoted by n butanol. IR spectra proved that microsphere was crosslinked by the reaction of methanal and glutaraldehyde with hydroxy of κ Carrageenan. |
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| Keywords: | κ-Carrageenan antiphase emulsifiable method microspheres preparation |
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