| 학회 |
한국고분자학회 |
| 학술대회 |
2012년 봄 (04/12 ~ 04/13, 대전컨벤션센터) |
| 권호 |
37권 1호 |
| 발표분야 |
고분자합성 |
| 제목 |
Synthesis and Characterization of Poly(methyl methacrylate)-b-Polystyrene from Hydroxyapatite Nanoparticles via Surface-Initiated RAFT Polymerization |
| 초록 |
Well-defined diblock copolymer, poly(methyl methacrylate)-b-polystyrene (PMMA-b-PS), was synthesized from the surface of hydroxyapatite (HAP) successfully via RAFT polymerization technique. The surface of HAP nanoparticles was initially modified by attaching dithioester groups to the surface using 3-(chloropropyl)triethoxy silane and sodium ethyl xanthate. The block polymerization was initiated by treating of methyl methacrylate with surface functionalized HAP (as RAFT agent) to afford HAP-PMMA macro initiator which was subjected for polymerization with styrene to give well controlled HAP-g-(PMMA-b-PS). The structure and morphology of the nanocomposites were investigated by means of FT-IR, 1H-NMR, XPS, TEM and TGA. It was observed from the FT-IR spectra that polymer brushes were covalently attached to the HAP surface. The GPC analysis of the polymer cleaved from HAP surface suggested well-controlled molecular weight with relatively narrow polydispersity index. |
| 저자 |
Long Giang Bach, Md. Rafiqul Islam, Seong Deok Seo, Yong Hun Kim, 임권택
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| 소속 |
부경대 |
| 키워드 |
RAFT polymerization |
| E-Mail |
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