Aggregation phenomena of PS-PEO diblock copolymers in water-organic mixed solvents = 물과 유기 혼합용매에서PS-PEO diblock copolymer의 응집 현상 연구

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 239
  • Download : 0
The micellization of PS-PEO diblock copolymers has been studied in water-organic mixed solvents comprising water-THF and water saturated with toluene by laser light scattering techniques. THF and toluene was absorbed into the micelle core when the slight amount of the organic solvents was added to an aqueous micellar solution. As consequence, the aggregation number of the micelle is increased. However the aggregation number of the micelle decreases as increases the volume fraction of THF due to the reduction of interfacial tension between the core and water-THF mixed solvent. Experimental data agree with the theoretical prediction based on the minimization of the free energy including interfacial energy. In conclusion, interfacial energy is an important parameter determining the aggregation number of the diblock copolymer micelles in a water-organic mixed solvent.
Advisors
Kim, Mahn-Wonresearcher김만원researcher
Description
한국과학기술원 : 신소재공학과,
Publisher
한국과학기술원
Issue Date
1998
Identifier
143535/325007 / 000957503
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 신소재공학과, 1998.8, [ ix, 48 p. ]

Keywords

Surface tension; Diblock copolymer; Micellization; PS/PEO; Interfacial energy; 계면에너지; 표면장력; 응집현상; 폴리에틸렌옥사이드; 폴리스타이렌

URI
http://hdl.handle.net/10203/51593
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=143535&flag=dissertation
Appears in Collection
MS-Theses_Master(석사논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0