新型环糊精-蚕丝纤维的合成及其包合性能  

Novel Synthesis and Inclusion Property of Cyclodextrin-grafted Silk Fiber

作　　者：温会涛[1] 胡智文[1] 王秉[1] 郑海玲[1] 陈瑞芬[1] 万军民[1] 陈文兴[1] 

机构地区：[1]浙江理工大学先进纺织材料与制备技术教育部重点实验室,浙江杭州310018

出　　处：《青岛科技大学学报（自然科学版）》2009年第2期138-142,共5页Journal of Qingdao University of Science and Technology:Natural Science Edition

基　　金：浙江省自然科学基金资助项目(M503216)

摘　　要：为制备新型蚕丝功能纤维,用环糊精对其接枝改性。首先合成了6位环糊精单醛,然后通过还原氨化反应将其接枝到蚕丝纤维,合成了包合药物β-苯丙烯酸的接枝β-CD蚕丝功能纤维,测定了其包合稳定性常数和热力学参数,研究了其包合与释放性能。结果表明,该包合反应为放热反应,分子间的范德华力在起主导作用;包合物的稳定性受温度影响较大,低于30℃比较稳定,40℃时大量释放;在同一温度下,释放率随时间的增加而变大。利用接枝环糊精法改性蚕丝纤维,并选择合适的客体分子包合,为制备新型功能纤维提供了可能。A new type of functional silk fiber grafted with β-cyclodextrin was prepared by modifying silk fiber as applying coupling β-cyclodextrin monoaldehyde to silk fiber in the presence of sodium cyanoborohydride, which can form 1 ： 1 inclusion complex with cinnamic acid. The stability constant and thermodynamic parameters of the inclusion com- plex under various temperatures were determined, as well as its stability and releasing behavior in aqueous solution. It is observed that the inclusion reaction, dominated by van der Waals bonding, is exothermic. The inclusion complex containing fiber is relatively stable below 30℃ , and its releasing of cinnamic acid reaches nearly an optimum state at 40 ℃, near normal temperature of humans. For a fixed temperature, the releasing rate increases with prolonging time. This synthesis method of cyclodextrin-grafted silk fiber through reductive amination reaction provides a viability of preparing new functional fibers with various foreign molecular inclusions.

关 键 词：环糊精 蚕丝纤维 包合反应 功能纤维 

分 类 号：O641.3[理学—物理化学] TS102.33[理学—化学]