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ÎÄÕÂÌâÄ¿£ºRadiation grafting of maleic anhydride onto polypropylene in solid state via ultrafine blend ÆÚ¿¯£ºRadiation Effects & Defects in Solids ÊÇ·ñ±»SCI»òEI¼ìË÷£¬Ð»Ð»£¡ |
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SCIδ¼ìË÷µ½ EI¼ìË÷µ½ÁË£º Accession number: 20142017731503 Title: Radiation grafting of maleic anhydride onto polypropylene in solid state via ultrafine blend Authors: Tan, Xiumin1 Author affiliation: 1Zhengzhou Institute of Multipurpose Utilization of Mineral Resources, CAGS, Zhengzhou 450006, China Corresponding author: Tan, X. (ztanxiumin@yahoo.com.cn) Source title: Radiation Effects and Defects in Solids Abbreviated source title: Radiat Eff Defects Solids Volume: 169 Issue: 5 Issue date: May 4, 2014 Publication year: 2014 Pages: 437-446 Language: English ISSN: 10420150 E-ISSN: 10294953 CODEN: REDSEI Document type: Journal article (JA) Publisher: Taylor and Francis Ltd. Abstract: A novel method to prepare maleic anhydride grafting onto poly (propylene) (PP-g-MAH) was described. It was performed by ¦Ã-irradiation in solid state via ultrafine blend in the absence of any initiator and the grafting mechanism was proposed based on the experimental results. First, ultrafine blend of MAH and PP was prepared through ultrasonic initiation in melt state and then cooled rapidly. Second, the blend was radiated by ¦Ã-irradiation in the circumstance of atmosphere. Effects of irradiation dose and MAH concentration on the amount of grafted MAH were investigated. Compared with the conventional solid-state radiation grafting method, PP-g-MAH obtained via this method shows a higher graft rate of MAH. This novel method also has the advantages of solventless, energy efficient, low cost and simple operation. Furthermore, it is very easy to get purified products. The molecular structures of grafted copolymer were characterized by Fourier-transform infrared spectroscopy. Differential scanning calorimetry, wide-angle X-ray diffraction and polarized optical microscope were used to determine the degree of crystallinity and crystalline structure. © 2014 Taylor & Francis. Number of references: 12 Main heading: Grafting (chemical) Controlled terms: Differential scanning calorimetry - Energy efficiency - Heat radiation - Irradiation - Maleic anhydride - Polypropylenes - Radiation - X ray diffraction Uncontrolled terms: Crystalline structure - Degree of crystallinity - Grafted copolymers - Polarized optical microscopes - Radiation grafting - Ultrafine - Ultrasonic initiation - Wide-angle x-ray diffraction Classification code: 525.2 Energy Conservation - 641.2 Heat Transfer - 711 Electromagnetic Waves - 711.1 Electromagnetic Waves in Different Media - 801 Chemistry - 804.1 Organic Compounds - 815.1 Polymeric Materials - 815.1.1 Organic Polymers - 931.3 Atomic and Molecular Physics DOI: 10.1080/10420150.2014.905937 Database: Compendex Compilation and indexing terms, © 2013 Elsevier Inc. Full-text and Local Holdings Links |
4Â¥2014-06-09 10:55:40
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EIÊÕ¼ Accession number: 20142017731503 Title: Radiation grafting of maleic anhydride onto polypropylene in solid state via ultrafine blend Authors: Tan, Xiumin1 Email author ztanxiumin@yahoo.com.cn Author affiliation: 1 Zhengzhou Institute of Multipurpose Utilization of Mineral Resources, CAGS, Zhengzhou 450006, China Corresponding author: Tan, X. (ztanxiumin@yahoo.com.cn) Source title: Radiation Effects and Defects in Solids Abbreviated source title: Radiat Eff Defects Solids Volume: 169 Issue: 5 Issue date: May 4, 2014 Publication year: 2014 Pages: 437-446 Language: English ISSN: 10420150 E-ISSN: 10294953 CODEN: REDSEI Document type: Journal article (JA) Publisher: Taylor and Francis Ltd. Abstract: A novel method to prepare maleic anhydride grafting onto poly (propylene) (PP-g-MAH) was described. It was performed by ¦Ã-irradiation in solid state via ultrafine blend in the absence of any initiator and the grafting mechanism was proposed based on the experimental results. First, ultrafine blend of MAH and PP was prepared through ultrasonic initiation in melt state and then cooled rapidly. Second, the blend was radiated by ¦Ã-irradiation in the circumstance of atmosphere. Effects of irradiation dose and MAH concentration on the amount of grafted MAH were investigated. Compared with the conventional solid-state radiation grafting method, PP-g-MAH obtained via this method shows a higher graft rate of MAH. This novel method also has the advantages of solventless, energy efficient, low cost and simple operation. Furthermore, it is very easy to get purified products. The molecular structures of grafted copolymer were characterized by Fourier-transform infrared spectroscopy. Differential scanning calorimetry, wide-angle X-ray diffraction and polarized optical microscope were used to determine the degree of crystallinity and crystalline structure. © 2014 Taylor & Francis. Number of references: 12 Main heading: Grafting (chemical) Controlled terms: Differential scanning calorimetry - Energy efficiency - Heat radiation - Irradiation - Maleic anhydride - Polypropylenes - Radiation - X ray diffraction Uncontrolled terms: Crystalline structure - Degree of crystallinity - Grafted copolymers - Polarized optical microscopes - Radiation grafting - Ultrafine - Ultrasonic initiation - Wide-angle x-ray diffraction Classification code: 525.2 Energy Conservation - 641.2 Heat Transfer - 711 Electromagnetic Waves - 711.1 Electromagnetic Waves in Different Media - 801 Chemistry - 804.1 Organic Compounds - 815.1 Polymeric Materials - 815.1.1 Organic Polymers - 931.3 Atomic and Molecular Physics DOI: 10.1080/10420150.2014.905937 Database: Compendex Compilation and indexing terms, © 2013 Elsevier Inc. |

2Â¥2014-06-09 10:54:42
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3Â¥2014-06-09 10:54:52













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