| 학회 |
한국고분자학회 |
| 학술대회 |
2009년 가을 (10/08 ~ 10/09, 광주과학기술원 오룡관) |
| 권호 |
34권 2호 |
| 발표분야 |
고분자 합성 |
| 제목 |
Controlled Synthesis of Polymer Brushes Grown from Modified Silica Particle via Living Anionic Surface Initiated Polymerization (LASIP) |
| 초록 |
The synthesis of polydiene brushes grafted from modified nanoparticulate silica by living anionic surface initiated polymerization(LASIP) were described. Immobilized double bonds on the surface of the nano-silica particles were first initiated using sec-BuLi in the presence a variety of additive such as TMEDA, t-BuoLi and i-Bu3Al respectively. Follwing the sequence of polymerization by addition of monomer and termination gave polymer brushes. The importance of careful activation of the particle initiator, control of polymerization conditions, and removal of excess BuLi were emphasized. The microstructure of polymer brushes and grafting efficiency as well as grafting density could be controlled with variation of reaction conditions. The molecular weights and the molecular weight distributions of the synthesized polymer brushes were measured using GPC. The microstructures and the compositions were characterized by proton 1H-NMR. |
| 저자 |
지상철, 박종혁, 고선덕, 김태중, 정권영, 이범재
|
| 소속 |
충남대 |
| 키워드 |
Living anionic surface initiated polymerization(LASIP); Nanoparticulate; Grafting efficiency; Grafting density
|
| E-Mail |
|
