Aggregation behavior of a polystyrene-b-poly(phenylsilsesquioxane) H-type copolymer at the air/water interface
- Title
- Aggregation behavior of a polystyrene-b-poly(phenylsilsesquioxane) H-type copolymer at the air/water interface
- Author
- 손대원
- Keywords
- H-block copolymer; Surface micelle aggregation; Pi–A behavior
- Issue Date
- 2012-03
- Publisher
- Elsevier Science B.V., Amsterdam.
- Citation
- Polymer, Vol.53, No.11 [2012], p2223-2232
- 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.
- URI
- http://www.sciencedirect.com/science/article/pii/S0032386112002534?via%3Dihubhttp://hdl.handle.net/20.500.11754/67734
- ISSN
- 0032-3861
- DOI
- 10.1016/j.polymer.2012.03.032
- Appears in Collections:
- COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > CHEMISTRY(화학과) > Articles
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