| 학회 | 한국고분자학회 |
| 학술대회 | 2003년 가을 (10/10 ~ 10/11, 부경대학교) |
| 권호 | 28권 2호, p.243 |
| 발표분야 | 기능성 고분자 |
| 제목 | Effect of Nano-sized Silicas in HPDLC Based on Polyurethane Acrylate |
| 초록 | During photopolymerization the PUA-based oligomer, polymer matrix volume is reduced upon polymerization, commonly known as polymerization shrinkage. The shrinkage of polymer results in additional scattering losses. Diffraction modes of holographic grating were fabricated with various molecular structure of polyurethane acrylates(PUA) and two silica(AEROSIL 200 and AEROSIL R805) to reduce the shrinkage of polymer matrix. The morphology of the resultant gratings was analyzed by using scanning electron microscopy(SEM) and the storage moduli of PUA-silica composite films by dynamic mechanical thermal analysis(DMTA). It was founded that shrinkage of PUA composite film with silica was reduced compared with PUA film without silica, HPDLC based PUA-silica composite also showed high diffraction efficiency. |
| 저자 | 김은희, 김병규 |
| 소속 | 부산대 |
| 키워드 | HPDLC; shrinkage; silica |
