| 학회 |
한국고분자학회 |
| 학술대회 |
2003년 봄 (04/11 ~ 04/12, 연세대학교) |
| 권호 |
28권 1호, p.309 |
| 발표분야 |
고분자 구조 및 물성 |
| 제목 |
Synthesis and Surface Structure of Poly(dimethylsiloxane)/Polyester Triblock Copolymers and Its Reorientation under Water |
| 초록 |
Triblock copolymers of poly(dimethylsiloxane) (PDMS) middle block and degradable polyester end blocks were synthesized by the ring open polymerization initiated by alcohol groups of PDMS. Surface composition of the triblock copolymers is measured by angle-dependent electron spectroscopy for chemical analysis. The PDMS blocks are segregated in the topmost surface region and constituted up to 90 mol % of the surface, even though the overall bulk PDMS concentrations of the block copolymers is 6% or less. This result suggests that the bulk property of degradable polyesters is essentially unchanged due to the high surface segregation of PDMS. From the unique properties of PDMS, this modification of PDMS surface segregation will be useful to improve biocompatibility and biodegradability of biomaterials. |
| 저자 |
전상익;이진국;이원기 |
| 소속 |
부경대 |
| 키워드 |
poly(dimethylsiloxane); surface segregation;
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| E-Mail |
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