Research of Atom Transfer Radical Polymerization of Methyl Polypropylene
| Autor: | Yong Ke, Xiao Yong Hu, Zhi Yuan Lin, Ming Jun He, Yu Qing Xu, Jin Cui |
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| Rok vydání: | 2016 |
| Předmět: |
Kinetic chain length
Bulk polymerization Chemistry Mechanical Engineering Radical polymerization Chain transfer Solution polymerization Condensed Matter Physics Photochemistry Chain-growth polymerization Polymerization Mechanics of Materials Polymer chemistry Precipitation polymerization General Materials Science |
| Zdroj: | Materials Science Forum. 852:720-725 |
| ISSN: | 1662-9752 |
| Popis: | The methyl polypropylene was prepared bsaed on toluene as solvent, cuprous bromide (CuBr) / copper bromide (CuBr2)/tris (2-dimethylaminoethyl) amine (Me6TREN) as catalyst, azo dimethoxyisoquinolin heptanenitrile (V-70) as radical additive, 2-bromoisobutyrate (EtBiB) as initiator. The polymerization reaction was initiated by using the ultimate atomic radical polymerization (UATRPSM), whose chain reaction was manifested in linear first-order kinetics. In this study, the conversion of monomers, polymer dispersion coefficient and the relative molecular weight with monomer conversion rate changes were studied by gas chromatography (GC) and gel permeation chromatography (GPC). The results show that the final monomer conversion was 87%; with increasing monomer conversion, polymer dispersion coefficient (PDI) decreases and reaches the optimum value 1.19, while the relative molecular weight of the linear growth, and prove the reaction was precise control. |
| Databáze: | OpenAIRE |
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