화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2004년 가을 (10/08 ~ 10/09, 경북대학교)
권호 29권 2호, p.508
발표분야 고분자 구조 및 물성
제목 Shape Transformation of Star Branched Polystyrene from Solution SAXS Analysis
초록 To determined the shape of star branched polystyrene with changes of number of arms on good and theta solution, solution small angle scattering experiment (SAXS) was performed with aid of synchrotron source at Pohang light source. From the SAXS data. radius of gyration (Rg), cross-sectional radius of gyration (Rq), persistence length, and g-factor of Zimm-stockmayer were calculated. By applying the indirect Fourier Transform (IFT), the shape of star branched polystyrene was observed in detail. According to the fit result, star-like shape transformed to hard sphere-like shape with increase of number of arm. The results are in detail discussed with considering solvent effect.
저자 진상우1, 윤진환2, 허규용3, 진경식4, 김제한5, 김광우6, 이문호7, Akira Hirao1, Tomoya Higashihara2
소속 1Department of Chemistry, 2Center for Integrated Molecular Systems, 3Division of Molecular of life science (BK21 program), 4Polymer Research Institute, 5Pohang Univ. of Science and Technology, 6Pohang 790-784, 7Republic of Korea
키워드 Star branched Polystyrene; Small angle X-ray scattering; Shape transformation
E-Mail