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

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 introduce...

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Bibliographic Details
Published in:Journal of polymer science. Part B, Polymer physics Polymer physics, 2007-02, Vol.45 (3), p.368-375
Main Authors: Machida, Shinjiro, Nakata, Hiroshi, Yamada, Kazushi, Itaya, Akira
Format: Article
Language:English
Subjects:
Applied sciences
diblock copolymers
dyes/pigments
Exact sciences and technology
morphology
Organic polymers
Physicochemistry of polymers
Properties and characterization
selective doping
Structure, morphology and analysis
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Summary: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
ISSN:0887-6266
1099-0488
DOI:10.1002/polb.21050