胶束增强型聚电解质微胶囊的制备  

Preparation of “Micelles Enhanced” Polyelectrolyte Capsules

作　　者：杨晓峰[1] 李晓东[1] 沈家骢[2] 

机构地区：[1]浙江大学医学院附属口腔医院,杭州310006 [2]浙江大学高分子复合材料研究所,杭州310027

出　　处：《高等学校化学学报》2007年第5期974-977,共4页Chemical Journal of Chinese Universities

基　　金：浙江省科技攻关计划项目(批准号:2006C33012);浙江省自然科学基金(批准号:Y205183);国家自然科学重点基金(批准号:50333020);国家'九七三'计划项目(批准号:2005CB623902)资助.

摘　　要：采用杂化碳酸钙微球作为模板,利用LbL技术,选择聚苯乙烯磺酸钠(PSS),烯丙基胺的盐酸盐(PAH)和二烯丙基二甲基胺盐酸盐(PADA)聚电解质,分别组装了PAH/PSS(弱/强)聚电解质胶囊和PADA/PSS(强/强)聚电解质微胶囊.除去模板后得到了球形良好、分散均匀的聚电解质微胶囊.研究结果表明,利用杂化碳酸钙微球作为聚电解质微胶囊的模板,得到的微胶囊的囊壁厚而致密,同时,由于组装采用的聚电解质的种类不同,囊壁的微观形貌有较大差异.Hybrid CaCO3 particles were used as templates to fabricate two kinds of ＂micelles enhanced＂ polyelectrolyte capsules with three different polyelectrolytes such as poly（allylamine hydrochloride） , poly（sodium styrenesulfonate）, and poly（ di-allyldimethylammonium chloride） via LbL technique. Both of （PAIl/ PSS）6 and （PADA/PSS）6 capsules had good spherical shape and good dispersion by CLSM. In contrast with conventional polyelectroly-te capsules, these novel micelles enhanced capsules had thick and compact capsule wall. Meanwhile, fine FESEM images showed that there was a significant difference in microstructure and topology between the two kinds of capsules made of different component polyelectrolytes.

关 键 词：LbL技术 聚电解质微胶囊 模板 自组装 胶束增强 

分 类 号：O647.3[理学—物理化学] TB383[理学—化学]