Nanoscale control of polymer crystallization by nanoimprint lithography

被引:137
作者
Hu, ZJ
Baralia, G
Bayot, V
Gohy, JF
Jonas, AM
机构
[1] Catholic Univ Louvain, Lab Chim & Phys Hauts Polymeres, POLY, B-1348 Louvain, Belgium
[2] Catholic Univ Louvain, Unite Chim Mat Inorgan & Organ, CMAT, B-1348 Louvain, Belgium
[3] Catholic Univ Louvain, Unite Disposit Integres & Circuits Electron, B-1348 Louvain, Belgium
[4] Catholic Univ Louvain, Res Ctr Micro & Nanoscop Mat & Elect Devices, CeRMiN, B-1348 Louvain, Belgium
关键词
D O I
10.1021/nl051097w
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Polymer crystallization is notoriously difficult to control. Here, we demonstrate that the orientation of polymer crystals can be fully controlled at the nanoscale by using nanoimprint lithography (NIL) with molds bearing nanotrenches to shape thin films of poly(vinylidene fluoride). This unprecedented control is due to the thermomechanical history experienced by the polymer during embossing, to the shift of the nucleation mechanism from heterogeneous to homogeneous in confined regions of the mold, and to the constraining of the fast growth axis along the direction of the trenches. NIL thus appears as an ideal tool to realize smart polymer surfaces where crystal ordering can be tuned locally.
引用
收藏
页码:1738 / 1743
页数:6
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