학회 | 한국화학공학회 |
학술대회 | 1999년 봄 (04/23 ~ 04/24, 성균관대학교) |
권호 | 5권 1호, p.1753 |
발표분야 | 이동현상 |
제목 | 비균일 Ziegler-Natta 고분자 중합 |
초록 | Heterogeneous Ziegler-Natta polymerization of ethylene and α-olefins occurs in small particles that grow with time as polymer produced. There is still not a definitiveexplanation for the appearance of the broad molecular weight distribution which is quitcommonly found in Ziegler-Natta polymerized olefins. Work is progressing on models forpredicting the molecular weight and sequence distributions of the polymer productproduced under these conditions, where activity of catalyst sites may vary with timeand position in growing particle. Any model for these phenomena must be solvednumerically. The present work demonstrates the use of chebyshev pseudospectralcollocation for moving boundary problems and permits us to draw some conclusionsabout the broad molecular weight distributions in Ziegler-Natta polymers. |
저자 | 정옥열, 박흥목 |
소속 | 서강대 |
키워드 | Ziegler-Natta polymerization; molecular weight distribution |
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원문파일 | 초록 보기 |