Reversible morphology control of three-dimensional block copolymer nanostructures by the solvent-annealing-induced wetting in anodic aluminum oxide templates. Issue 13 (1st September 2016)

• Record Type: Journal Article
• Authors: Chu, Chiang-Jui; Cheng, Ming-Hsiang; Chung, Pei-Yun; Chi, Mu-Huan; Jeng, Kai-Sheng; Chen, Jiun-Tai
• Is Part Of: International journal of polymeric materials. Volume 65:Issue 13(2016)
• Page Start: 695
• Page End: 701
• Publication Date: 2016-09-01
• Subjects: Block copolymer -- self-assembly -- solvent vapor annealing -- template -- wetting; Polymers -- Periodicals; Plastics -- Periodicals; 620.19205
• DOI: 10.1080/00914037.2016.1157801
• Languages: English
• ISSNs: 0091-4037

Abstract

ABSTRACT: In this work, the authors study the fabrication of three-dimensional block copolymer nanostructures in which the morphologies can be reversibly controlled. Polystyrene- block -polydimethylsiloxane (PS- b -PDMS), a promising candidate for nanolithography, is introduced into cylindrical nanopores of anodic aluminum oxide (AAO) templates using a solvent annealing–induced nanowetting in templates (SAINT) method. Not only the morphologies of the infiltrated PS- b -PDMS nanostructures can be tuned by the annealing solvents, but also the solvent-vapor-controlled morphologies can be altered reversibly by annealing the samples repeatedly between different solvent vapors. GRAPHICAL ABSTRACT: