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http://dx.doi.org/10.14478/ace.2018.1014

Comparing Microscale Behaviors of Block Copolymer with Polymer Blend Thin Films under Electric Fields  

Bae, Joonwon (Department of Applied Chemistry, Dongduk Women's University)
Publication Information
Applied Chemistry for Engineering / v.29, no.4, 2018 , pp. 395-398 More about this Journal
Abstract
In this work, profound microscale behaviors of block copolymer and polymer blend under electric field were investigated using microscopic methods and compared systematically. To this end, both the block copolymer and blend containing polyacrylonitrile (PAN) and poly(methyl methacrylate) (PMMA) were introduced. The two polymers have a similar dielectric constant. Under an identical experimental condition such as temperature, film thickness, field intensity, and exposure time, the polymer blend responded more sensitively than the block copolymer. The presence of covalent bond suppressed the mobility of constituents in block copolymer. This study will be essential for future research activities regarding behaviors of polymeric materials under external fields.
Keywords
Electric field; interface; block copolymer; polymer blend; thin film;
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