Polymorph selection during crystallization of random copolymers
| Autor: | Yuqing Lai, Yongfeng Men |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
chemistry.chemical_classification
Materials science Ethylene Polymers and Plastics Selective control Organic Chemistry Nucleation General Physics and Astronomy 02 engineering and technology Polymer 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences law.invention chemistry.chemical_compound chemistry Chemical engineering law Materials Chemistry Copolymer Crystallization 0210 nano-technology Selection (genetic algorithm) |
| Zdroj: | European Polymer Journal. 101:218-224 |
| ISSN: | 0014-3057 |
| DOI: | 10.1016/j.eurpolymj.2018.02.038 |
| Popis: | Many polymers show polymorphous behavior that they can crystallize into different crystalline modifications under different circumstances. For a particular polymer material, in most of the cases, one of the several possible modifications is generally preferentially developed. Therefore, selective control of the specific polymorphous modification thus properties in polymeric materials is highly desired. This article discusses underlying mechanism of polymorph selection during crystallization of random copolymers. Following a general discussion of theoretical considerations, we present case studies of butene-1/ethylene and propylene/ethylene random copolymers. Our results indicate that polymorph selection during crystallization of random copolymers is primarily controlled by the nucleation process. Nucleation of different polymorphs can be easily tuned via creating differently structured melt. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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