Fabrication of morphology-controlled nano/microstructural polyfluorene in mixed nonsolvent vapor atmospheres

被引：20
作者：
Bai, Weibin [1 ]
Xiao, Xueqing [1 ,2 ]
Cai, Lifang [1 ]
Xu, Yanlian [2 ]
Lin, Jinhuo [1 ,2 ]
机构：
[1] Fujian Normal Univ, Coll Mat Sci & Engn, Fuzhou 350007, Peoples R China
[2] Fujian Normal Univ, Key Lab Polymer Mat, Fuzhou 350007, Peoples R China
来源：
REACTIVE & FUNCTIONAL POLYMERS | 2014年 / 76卷
基金：
中国国家自然科学基金;
关键词：
Nano/microstructures; Mixed vapor atmosphere; Porous film; Spherical segment; Microsphere; BREATH FIGURES; POROUS FILMS; HONEYCOMB; POLYMERS;
D O I：
10.1016/j.reactfunctpolym.2014.01.005
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Under mixed water and methanol vapor atmospheres, a poly(9,9-dihexylfluorene)/CH2Cl2 solution self-assembles to form various nano/microstructures, such as porous films, spherical segments and microspheres. The water droplet template and the polymer precipitation by methanol were the driving forces that fabricated the patterns. Porous films with different pore sizes were obtained in CS2 solution by altering the mixed vapor atmosphere. Changes in the spreading coefficient and solvent polarity led to the formation of different morphologies. The introduction of miscible solvent vapors in aqueous atmospheres is a facile way to design and fabricate polymeric nano/microstructures. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：13 / 18
页数：6
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