Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | 김병철 | - |
dc.contributor.author | 이승원 | - |
dc.date.accessioned | 2020-02-27T16:32:52Z | - |
dc.date.available | 2020-02-27T16:32:52Z | - |
dc.date.issued | 2014-02 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/131278 | - |
dc.identifier.uri | http://hanyang.dcollection.net/common/orgView/200000423428 | en_US |
dc.description.abstract | The effects of the structural characteristics of mesophase pitches on the rheological and physical properties were investigated in terms of temperature and shear. M-AR, polymerized from naphthalene with the HF/BF3 catalyst, was naphthenic and methylene-rich structure and T-MP, thermally condensed from coal tar, was aromatic structure. T-MP gave higher intensity ratio of D-band to G-band than M-AR in Raman analysis. Liquid crystalline morphology of M-AR was marbled texture and that of T-MP was schlieren texture. Shear initially applied to the pitches promoted the formation of the liquid crystalline domain. Molecular unstacking of M-AR proceeded gradually whereas that of T-MP occurred abruptly at particular temperature with increasing temperature in wide angle X-ray diffraction. Differential scanning calorimetry detected the molecular unstacking of T-MP near 350oC. M-AR and T-MP in nematic phase became biphase and isotropic phase in dynamic viscosity curves, respectively. The apparent viscosity curves followed the Onogi and Asada curve, which was proposed for liquid crystalline polymers. | - |
dc.publisher | 한양대학교 | - |
dc.title | The Structure Dependent Physical and Rheological Properties of The Mesophase Pitches | - |
dc.title.alternative | 메조페이즈 피치의 구조적 차이에 따른 물리적 • 유변학적 특성 | - |
dc.type | Theses | - |
dc.contributor.googleauthor | Seungwon Lee | - |
dc.contributor.alternativeauthor | 이승원 | - |
dc.sector.campus | S | - |
dc.sector.daehak | 대학원 | - |
dc.sector.department | 유기나노공학과 | - |
dc.description.degree | Master | - |
dc.contributor.affiliation | 고분자유변학 | - |
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