Aggregation behavior of a polystyrene-b-poly(phenylsilsesquioxane) H-type copolymer at the air/water interface

Yongsok Seo, Sang Gil Youm, Ji Hun Kim, Youngwook P. Seo, Soon Man Hong, Dae Won Sohn, Atsushi Takahara, Hyoung Jin Choi

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Abstract

A comprehensive Langmuir film balance/atomic force microscope study of the surface aggregation behavior of an H-type block copolymer having four branches of polystyrene (PS) blocks (number average molar mass (Mn) = 5000 Da per each branch) and poly(phenylsilsesquioxane) (PPSQ) (Mn = 40,000 Da) has been performed. Temperature dependent surface pressure isotherms and hysteresis experiments were combined with molecules aggregation number per surface micelle, leading to a self-consistent picture of the surface morphology and aggregation phenomena. In spite of the ladder structure of the PPSQ segment, the micelles mostly exist as spherical aggregates because of strong interaction between PS blocks.

Original languageEnglish
Pages (from-to)2223-2232
Number of pages10
Journalpolymer
Volume53
Issue number11
DOIs
Publication statusPublished - May 9 2012

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All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

Cite this

Seo, Y., Youm, S. G., Kim, J. H., Seo, Y. P., Hong, S. M., Sohn, D. W., ... Choi, H. J. (2012). Aggregation behavior of a polystyrene-b-poly(phenylsilsesquioxane) H-type copolymer at the air/water interface. polymer, 53(11), 2223-2232. https://doi.org/10.1016/j.polymer.2012.03.032