The O52 network by molecular design: CECD tetrablock terpolymers

被引:14
作者
Bluemle, Michael J. [1 ]
Fleury, Guillaume [1 ]
Lodge, Timothy P. [1 ,2 ]
Bates, Frank S. [1 ]
机构
[1] Univ Minnesota, Dept Chem Engn & Mat Sci, Minneapolis, MN 55455 USA
[2] Univ Minnesota, Dept Chem, Minneapolis, MN 55455 USA
基金
美国国家科学基金会;
关键词
TRIBLOCK COPOLYMERS; BLOCK-COPOLYMERS; SOFT MATERIALS; MORPHOLOGY; MELTS; WEIGHT; PHASES;
D O I
10.1039/b902367d
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070305 [高分子化学与物理];
摘要
Varying the length of poly(dimethylsiloxane) in poly(cyclohexylethylene-b-ethylene-b-cyclohexylethylene-b-dimethylsiloxane) (CECD) block terpolymers between 0 and 20% produces the sequence of ordered phases: cylindrical-to-network-to-cylindrical. Small-angle X-ray scattering and transmission electron microscopy demonstrate Pnna space group symmetry and a unique network morphology stabilized by the asymmetric molecular architecture and block interactions. These results establish a new design principle for the generation of triply periodic and multiply continuous nano-structured soft materials.
引用
收藏
页码:1587 / 1590
页数:4
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