Preparation and Chracaterization of Novel Graft Copolymers of LLDPE

Chem. J. Chinese Universities

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Preparation and Chracaterization of Novel Graft Copolymers of LLDPE

XIN Zhi-Rong^1,2, ZHAO Yu-Xia², HOU Wan-Guo¹, YIN Li-Gang³, QIU Zhao-Ming², LIU Xiao-Li², LIU Chan², YIN Jing-Hua³*

1. Key Lab for Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China;
2. School of Chemical and Biology Science and Engineering, Yantai University, Yantai 264005, China;
3. State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry,Chinese Academy of Sciences, Changchun 130022, China

Received:2007-04-23 Revised:1900-01-01 Online:2007-10-10 Published:2007-10-10
Contact: YIN Jing-Hua

Abstract

Abstract: A series of novel fluorine surfactants, a, b, c, d , e and their acrylates, A, B, C, D and E, were synthesized via poly(ethylene oxide)(PEG)(200, 600,1000, 2000, 5000) and perfluorooctane poly(ethylene oxide) ether as the main starting materials. Their chemical structures were characterized by means of FTIR and ¹H NMR. The surface activity and surface tension(γ) of surfactants a, b, c, d and e were evaluated by maximum bubble pressure method. Surfactants A, B,C, D and E were adopted as the grafting monomers of linear low density polyethere(LLDPE), and grafting reaction was carried out by melt reactive extrusion procedure. Their surface properties were characterized with measuring contact angle and XPS. It was found that the hydrophilic property of the graft copolymers was better than the palin LLDPE. Thermal properties of graft copolymers were studied by DSC. It was found that their crystalline temperatures of graft copolymers were faster than that of the plain LLDPE.

Key words: Fluorine surfactant, DSC thermal analysis, Surface tension, Graft copolymers of LLDPE

CLC Number:

O631

TrendMD:

XIN Zhi-Rong^1,2, ZHAO Yu-Xia², HOU Wan-Guo¹, YIN Li-Gang³, QIU Zhao-Ming², LIU Xiao-Li², LIU Chan², YIN Jing-Hua³*. Preparation and Chracaterization of Novel Graft Copolymers of LLDPE[J]. Chem. J. Chinese Universities, doi: .

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Preparation and Chracaterization of Novel Graft Copolymers of LLDPE

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