侧链液晶冠醚聚硅氧烷的促进传递  

TRANSPORT OF SIDE CHAIN LIQUID CRYSTAL POLYSILOXANE CONTAINING BNZO-15CROWN -5(PSC-11)

作　　者：杨丹[1] Rui Viegas 贺高红[3] 金美芳[1] 

机构地区：[1]中国科学院大连化学物理研究所膜中心,辽宁大连116023 [2]Dept of Chemistry,New University of Lisbon,Lisbon,Portugal [3]大连理工大学化工学院,辽宁大连116021

出　　处：《水处理技术》2004年第1期11-14,共4页Technology of Water Treatment

摘　　要：着重讨论了PSC-11的促进传递特性。与B15C5对比,由于PSC-11有高的分配系数(LogKc-22),提高了支撑液膜的稳定性。在支撑液膜中的促进传递结果用1∶1载体阳离子络合物讨论。用跳跃传递方式解释了PSC-11在固定位置载体膜中的促进传递,以及分析了PSC-11中液晶基元的外界热调节的相依赖操作系统。The synthesis of a poly (methylsiloxane) containing 4-(ω>-undecan-1-yl-oxy)-4'-(4'-carboxy benzo-15-crown-5)biphenyl side groups, PSC-11, is described. PSC-11 displays a nematic and two smectic enantiotropic mesophases. The stability of supoorted liquid membrane is enhanced in comparison with that of benzo-15-crown-5, because of the high paitition coefficent(logKc= 22) of PSC-11. In supported liquid membrane, the results were evaluated with transport model for 1:1 carrier cation complex. The transport through fixed-site carrier membrane is explained by a 'jumping' transport model, so the flux is higher than through supported liquid membrane. When fixed-site carrier membrane is treated in over 120 C and 2 hours, the flux rapidly decreases, which represent phase-dependent operation system with external thermal regulation.

关 键 词：聚甲基硅氧烷 液晶栽体 支撑液膜 固定位置载体膜 侧链液晶冠醚聚硅氧烷 PSC-11 促进传递 

分 类 号：X131.2[环境科学与工程—环境科学]