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Yuan W, Wang F, Gao C, Liu P, Ding Y, Zhang S, Yang M. Effect of silica‐coated
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nanorods on the foamability of polypropylene and photostability of foamed polypropylene. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Wenjing Yuan
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics Institute of Chemistry, Chinese Academy of Sciences Beijing China
- Laboratory for Synthetic Resin Research Institute of Petrochemical Technology, China National Petroleum Corporation Beijing China
| | - Feng Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics Institute of Chemistry, Chinese Academy of Sciences Beijing China
| | - Chong Gao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics Institute of Chemistry, Chinese Academy of Sciences Beijing China
| | - Peng Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics Institute of Chemistry, Chinese Academy of Sciences Beijing China
| | - Yanfen Ding
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics Institute of Chemistry, Chinese Academy of Sciences Beijing China
| | - Shimin Zhang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics Institute of Chemistry, Chinese Academy of Sciences Beijing China
| | - Mingshu Yang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics Institute of Chemistry, Chinese Academy of Sciences Beijing China
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Wang D, Wang J, He S, Yan Y, Zhang J, Dong J. Efficient approach to produce functional polypropylene via solvent assisted solid-phase free radical grafting of multi-monomers. APPLIED PETROCHEMICAL RESEARCH 2021. [DOI: 10.1007/s13203-020-00261-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
AbstractHerein an efficient approach to produce functional polypropylene via solvent assisted solid-phase grafting process is reported, in which acrylic acid, methyl methacrylate and maleic anhydride are used as multi-monomers, 2,2′-azobis(2-methylpropionitrile) as initiator and ether as swelling solvent and carrier. The effects of various factors such as the swelling solvent species and dosage, swelling time and temperature, monomer and initiator concentrations, reaction time and temperature, nitrogen flow rate and the stirring speed on the grafting percentage and grafting efficiency were investigated. To verify the polar species was grafted onto polypropylene, the resulted polymers were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, X-ray diffraction analysis, water contact angle measurement, tensile strength and melt flow rate measurement. All the results showed that using the ether assisted solid-phase free radical grafting process is an efficient and versatile approach to produce functional polypropylene.
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