Controlled release of urea encapsulated by starch-g-poly(L-lactide)
文献类型：期刊论文
| 作者 | Chen, Li1,2; Xie, Zhigang1; Zhuang, Xiuli1; Chen, Xuesi1; Jing, Xiabin1 |
| 刊名 | CARBOHYDRATE POLYMERS
 |
| 出版日期 | 2008-05-05 |
| 卷号 | 72期号:2页码:342-348 |
| 关键词 | Starch Graft-copolymerization Poly(L-lactide) Urea Controlled Release |
| ISSN号 | 0144-8617 |
| DOI | 10.1016/j.carbpol.2007.09.003 |
| 英文摘要 | This paper presented a new approach for preparing a new type of slow-release membrane-encapsulated urea fertilizer with starch-g-PLLA as biodegradable carrier materials. By solution-casting and washing rapidly with water the urea was individually encapsulated within the starch matrix modified by L-lactide through in situ graft-copolymerization. The release behavior of urea encapsulated in the films was studied, and following conclusions were achieved: (1) the introduction of hydrophobic PLLA reduced the swellability of starch matrix and decreased the release rate of urea; (2) the urea release rate could be controlled from several hours to I day by adjusting the graft efficiency; (3) scanning electron microscopy revealed that the urea encapsulated within the starch matrix was uniformly dispersed in the form of tiny cell and the urea encapsulated in the modified starch film released through a diffusion mechanism. Therefore, the modified starch products for controlled release could be expected to have widely potential application in agriculture industry as fertilizer carrier. (c) 2007 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000253709700018 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/65245]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Chen, Xuesi |
| 作者单位 | 1.Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.NE Normal Univ, Dept Chem, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Li,Xie, Zhigang,Zhuang, Xiuli,et al. Controlled release of urea encapsulated by starch-g-poly(L-lactide)[J]. CARBOHYDRATE POLYMERS,2008,72(2):342-348. |
| APA | Chen, Li,Xie, Zhigang,Zhuang, Xiuli,Chen, Xuesi,&Jing, Xiabin.(2008).Controlled release of urea encapsulated by starch-g-poly(L-lactide).CARBOHYDRATE POLYMERS,72(2),342-348. |
| MLA | Chen, Li,et al."Controlled release of urea encapsulated by starch-g-poly(L-lactide)".CARBOHYDRATE POLYMERS 72.2(2008):342-348. |
入库方式： OAI收割
来源：化学研究所
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