Mesophase structure-mechanical and ionic transport correlations in extended amphiphilic dendrons

被引：385

作者：

Cho, BK

Jain, A

Gruner, SM

Wiesner, U ^{[1
]}

机构：

[1] Cornell Univ, Dept Mat Sci & Engn, Ithaca, NY 14853 USA

[2] Cornell Univ, Dept Phys, Ithaca, NY 14853 USA

来源：

SCIENCE | 2004年 / 305卷 / 5690期

关键词：

D O I：

10.1126/science.1100872

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We have studied the self-assembly of amphiphilic dendrons extended with linear polyethylene oxide (PEO) chains and their ion complexes. Keeping the dendron core and linear PEO chain compatible allows for the combination of dendritic core-shell and conventional block copolymer characteristics for complex mesophase behavior. An unexpected sequence of crystalline lamellar, cubic micellar (Pm (3) over barn), hexagonal columnar, continuous cubic (la (3) over bard), and lamellar mesophases is observed. Multiple phase behavior within single compounds allows for the study of charge transport and mechanical property correlations as a function of structure. The results suggest an advanced molecular design concept for the next generation of nanostructured materials in applications involving charge transport.

引用

页码：1598 / 1601

页数：4

共 40 条

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