| 학회 |
한국고분자학회 |
| 학술대회 |
2008년 봄 (04/10 ~ 04/11, 컨벤션 뷰로(대전)) |
| 권호 |
33권 1호 |
| 발표분야 |
고분자 구조 및 물성 |
| 제목 |
Pressure effect on phase behavior of polystyrene-block-poly(n-alkyl methacrylate) Copolymers |
| 초록 |
The effects of pressure on phase behavior of weakly-interacting block copolymers was investigated by small-angle neutron (SANS) and temperature-dependent Fourier transform infrared spectroscopy (FTIR). For this purpose, a series of deuterated polystyrene-block-poly(n-alkyl methacrylate) (PS- PAnMA) copolymers with different n values (from 1 to 6) were prepared by anionic polymerization. We investigated, via two-dimensional hetero-spectral correlation analysis of wide angle X-ray scattering (WAXS) and FTIR, the specific chemical interactions existing in PS-PnPMA. The specific interaction between the PS and PnPMA blocks mainly arises from the dipole in the benzene ring of PS and the induced dipole in the PnPMA due to the cluster formation with a size of 1~2 nm. We found that the synchronous 2D WAXS-IR hetero-spectral correlation spectrum of the ordered state was completely different from that in the two disordered states. |
| 저자 |
김진곤1, Hye Jeong Kim2, Hong Chul Moon2
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| 소속 |
1포항공과대, 2Pohang Univ. of Science and Technology |
| 키워드 |
phase behavior; baroplasticity
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| E-Mail |
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