| 세션명 | 고분자구조 및 물성: 다성분계 고분자의 미세구조 및 물성 |
|---|---|
| 발표장 | 203호 |
| 논문코드 | 1L7-5 |
| 발표일 | 2019-10-10 |
| 발표시간 | 15:30-15:55 |
| 논문제목 | Understanding How to Tune Microstructure and Polymer Properties via Reaction Conditions for Low-Density Polyethylene |
| 발표자 | Kristina Pflug |
| 발표자 소속 | Institute for Technical and Macromolecular Engineering, University of Hamburg |
| 저자 | Kristina Pflug, Markus Busch1,† |
| 소속 | Institute for Technical and Macromolecular Engineering, University of Hamburg; 1Institute for Technical and Macromolecular Engineering, Technical University of Darmstadt |
| 논문초록 | Even chemically simple polymer structures, like polyethylene, can result is diverse properties. The special feature of PE is its branching structure, which exhibits short- and long-chain branches (SCBs and LCBs), which have a drastic effect on polymer properties. A multi-scale modelling approach was developed to understand this connection. A kinetic model determines concentration profiles and average polymer properties. Then, a hybrid Monte-Carlo model gives individual branching structures. Those are used to predict flow properties (shear/extensional rheology). The strategy was successfully validated via comprehensive analytics for a mini plant-scale autoclave as well as an industrial-scale tubular reactor. Depicting the formation of randomly distributed LCBs on complex polymer architectures and predicting their effect on properties was the biggest challenge. The new strategy poses a universal method to predict structure-property relationships only based on polymerization conditions. |
THE POLYMER SOCIETY OF KOREA