Morphological change of a diblock copolymer film induced by selective doping of a photoactive chromophore

✍ Scribed by Shinjiro Machida; Hiroshi Nakata; Kazushi Yamada; Akira Itaya

• Book ID: 105338517
• Publisher: John Wiley and Sons
• Year: 2006
• Tongue: English
• Weight: 755 KB
• Volume: 45
• Category: Article
• ISSN: 0887-6266
• DOI: 10.1002/polb.21050

✦ Synopsis

Abstract

Tetrakis‐5,10,15,20‐(4‐carboxyphenyl)porphyrine (TCPP) was position‐selectively introduced into a diblock copolymer film of polystyrene‐block‐poly(4‐vinylpyridine) (PS‐b‐P4VP) with a sea–island microphase structure. By immersing the PS‐b‐P4VP film into a solution of TCPP/methanol, TCPP was introduced into the island parts comprising P4VP phase. The morphology of the island parts depended on the immersion time and TCPP concentration. A schematic model for the morphological change caused by the phase‐selective introduction of TCPP was proposed. © 2006 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 45: 368–375, 2007