Highly ordered and robust honeycomb films with tunable pore sizes fabricated via UV crosslinking after applying improved phase separation

被引：25
作者：
Bui, Van-Tien [1 ]
Lee, Hwa Su [2 ]
Choi, Jae-Hak [2 ]
Choi, Ho-Suk [1 ]
机构：
[1] Chungnam Natl Univ, Dept Chem Engn, Taejon 305764, South Korea
[2] Chungnam Natl Univ, Dept Polymer Sci & Engn, Taejon 305764, South Korea
来源：
POLYMER | 2015年 / 74卷
基金：
新加坡国家研究基金会;
关键词：
Ordered structure; Robust honeycomb film; Disc-in-pore" topology; Improved phase separation; Polystyrene; BREATH-FIGURE METHOD; SELF-ORGANIZATION; MORPHOLOGY CONTROL; STRUCTURED FILMS; SOFT-LITHOGRAPHY; POLYMER-FILMS; ARRAYS; COPOLYMERS; TEMPLATES; PATTERNS;
D O I：
10.1016/j.polymer.2015.07.056
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Highly ordered hexagonal patterns of a commercially available polystyrene (PS) thin film are successfully fabricated via an improved phase separation method. A mixture of chloroform (ChL) and methanol (MeOH), which is used as a solvent/ non-solvent pair, exhibits strong potential and high sensitivity for producing highly ordered honeycomb films with mono-dispersed and tunable pore sizes. It is demonstrated that a ChL/MeOH volume ratio of 90/10 is the optimal ratio for fabricating the highest quality of honeycomb films. The patterned film is further modified to enhance the solvent resistance as well as thermal stability through crosslinking the PS via deep UV irradiation. The convergence of cost effective, large-scale production and the robustness of highly ordered honeycomb film enables new applications for commercialization in the fields of microporous films and outdoor applications. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：46 / 53
页数：8
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