材料研究学报  2010, Vol. 24 Issue (6): 619-624

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W/O/W复相乳液法合成多元氮丙啶/聚酯微胶囊的研究及表征

胡剑青, 郑智贤,  朱海军,  涂伟萍,  王锋

华南理工大学化学与化工学院 广州 510640

Synthesis and Characterization of Polyfunctional Aziridine/Polyester Microcapsules by W/O/W Multiple Emulsion–solvent Evaporation

HU Jianqing, ZHENG Zhixian, ZHU Haijun, TU Weiping, WANG Feng

School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640

胡剑青 郑智贤 朱海军 涂伟萍 王锋. W/O/W复相乳液法合成多元氮丙啶/聚酯微胶囊的研究及表征[J]. 材料研究学报, 2010, 24(6): 619-624.
. Synthesis and Characterization of Polyfunctional Aziridine/Polyester Microcapsules by W/O/W Multiple Emulsion–solvent Evaporation[J]. Chin J Mater Res, 2010, 24(6): 619-624.

摘要 参考文献 相关文章 Metrics 全文: PDF(1023 KB)   摘要: 通过W/O/W型复相乳液法合成制备多元氮丙啶(XAMA--7)/聚酯交联控制型微胶囊, 对合成过程及工艺参数的影响进行了研究, 研究发现: 溶剂蒸发速率太高会导致微胶囊表面皱缩和多孔, 溶剂在2小时蒸发完全时得到的微胶囊表面硬化速率均匀; 低表面自由能的聚酯对形成微胶囊有利, 其值为34.5 mJ/m2时可以制得完整包覆的微胶囊; 胶体稳定剂用量为2.5%时可以得到具有中空结构的规整球形微胶囊; 壁心质量比对所制备的微胶囊形态和囊心含量具有重要的影响, 壁心质量比为50%:50%的微胶囊球形规整且壁厚均匀,囊心含量约为22%; 通过扫描电镜和红外光谱对微胶囊形貌和组成进行表征, 结果证明微胶囊呈中空结构且壁厚均匀, 聚酯对多元氮丙啶(XAMA--7)形成包覆, XAMA--7分布于微胶囊的中心区域。 关键词 ： 有机高分子材料,  微胶囊,  聚酯,  多元氮丙啶,  复相乳液法     Abstract：A novel multiple emulsion–solvent evaporation method was successfully adopted to prepare polyfunctional aziridine/polyester cross linking microcapsules, during which various synthesis process parameters were discussed in detail. It was found that too fast a solvent evaporation rate would result in shrink porous microcapsules, and even hardening rate for microcapsule shell could be achieved with solvent evaporating in ca. 2 hours. Polyester with lower surface free energy was found to be beneficial for capsulation, and fully capsulated microcapsules were synthesized at 34.5 mJ/m2. Adding 2.5% of colloid stabiliser could result in even–structured microcapsules with hollow structure. Well–defined microcapsules with even shell thickness were obtained at 50%:50% of shell/ core mass ratio, with a core content of 22%, indicating that morphology and core content of microcapsule strongly depend on shell/ core mass ratio. SEM and FTIR were used to determine morphology and chemical constitution of microcapsules. Hollow–structured microcapsules with even shell thickness could be clearly observed. XAMA–7 core were well capsulated at the centre of microcapsules. Key words： organic polymer materials    microcapsule    polyester    polyfunctional aziridine    multiple emulsion–solvent evaporation 收稿日期: 2010-04-15      ZTFLH:  TB324   基金资助: 国家自然科学基金50903031及中央高校基本科研业务费专项资金2009ZM0046资助项目。 服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 胡剑青 44.8K 链接本文: https://www.cjmr.org/CN/      或      https://www.cjmr.org/CN/Y2010/V24/I6/619 [1] Kondo A. Microcapsule processing and technology. (New York: Marcel Dekker, 1979)p.165 [2] Sparks RE. Microencapsulation. (New York: Marcel Dekker, 1989)p.255 [3] Olivier PH, Nicolas J, Lahoussine O. Real-time monitoring of fragrance release from cotton towels by low thermal mass gas chromatography using a longitudinally modulating cryogenic system for headspace sampling and injection. Anal. Chem, 82 (2):729(2010) [4] Hu SH, Tsai CH, Liao CF. Controlled rupture of magnetic polyelectrolyte microcapsules for drug delivery. Langmuir, 24(20):11811 (2008) [5] Uttam M, Satish P. 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