| 학회 |
한국고분자학회 |
| 학술대회 |
2006년 봄 (04/06 ~ 04/07, 일산킨텍스) |
| 권호 |
31권 1호 |
| 발표분야 |
의료용 고분자 부문위원회 |
| 제목 |
A Novel Approach to Surface Modification of Hydroxyapatite Nano-Crystals: Grafting Polymerization Based on Radical Chain Transfer |
| 초록 |
Modification of hydroxyapatite (HAp) nano-surfaces with polymers has attracted expanding interests since it can not only produce the HAp with colloidal stability but also contribute to the enhanced interfacial adhesion in HAp/polymer composites. In this study, we describe the grafting polymerization of ethylene glycol methacrylate phosphate (EGMP) on HAp nano-crystals based on a two-step synthetic procedure: Synthesis of HAp with surface thiol groups and grafting polymerization of EGMP on HAp via radical telomerization based on chain transfer to surface thiol groups. The data in this study indicated that the grafted polymers with phosphate groups could offer HAp with good dispersion property and strong adhesion with cationic biopolymers such as chitosan. Acknowledgement. This research was supported by a grant (code #: 05K1501-01510) from 'Center for Nanostructured Materials Technology' under '21st Century Frontier R&D Programs' of the Ministry of Science and Technology, Korea. |
| 저자 |
최형우1, 이홍재2, 김경자2, 이상천2
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| 소속 |
1요업(세라믹)기술원 생체재료팀 / 연세대, 2요업(세라믹)기술원 생체재료팀 |
| 키워드 |
Hydroxyapatite; Grafting polymerization; Surface modification; Chain transfer
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| E-Mail |
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