Surface modes and deformation energy of a molten polymer brush
Surface modes and deformation energy of a molten polymer brush
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DOI：
10.1021/ma00037a015
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发表时间：
1992-05
期刊：
影响因子：
5.5
通讯作者：
G. Fredrickson;A. Ajdari;L. Leibler;J. Carton
中科院分区：
文献类型：
--
作者：
G. Fredrickson;A. Ajdari;L. Leibler;J. Carton
An analysis of the free energy of distortion of a molten polymer brush, such as a layer of block copolymer at an air interface, is reported. Within the Alexander-de Gennes approximation of a delta function distribution of chain ends, but rigorously enforcing incompressibility, the change in the free energy of a brush associated with a small-amplitude sinusoidal displacement of the free surface about the equilibrium height is calculated. Unlike the surface of a liquid, long-wavelength modes in a brush are suppressed due to the lateral chain stretching required to maintain constant density
