| BARRIER PROPERTY AND STRUCTURE OF ACRYLONITRILE/ACRYLIC COPOLYMERS |
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| 作者姓名： | 杨正华 李悦生 |
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| 作者单位： | Changchun Institute of Applied Chemistry，Chinese Academy of Sciences，Changchun 130022，Changchun Institute of Applied Chemistry，Chinese Academy of Sciences，Changchun 130022 |
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| 基金项目： | The project is supported by the National Natural Science Foundation of China |
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| 摘 要： | A series of acrylonitrile (AN) copolymers with methyl acrylate (MA) or ethyl acrylate(EA) as comonomer (5--23 wt%) was prepared by free-radical copolymerization. The per-meability coefficients of the copolymers to oxygen and carbon dioxide were measured at1.0 MPa and at 30℃, and those to water vapor also measured at 100% relative humidityand at 30℃. All the AN/acrylic copolymers are semicrystalline. As the acrylate contentincrease, the permeability coefficients of the copolymers to oxygen and carbon dioxide areincreased progressively but those to water vapor are decreased progressively The gas per-meability coefficients of the polymers were correlated with free-volume fractions or the ratioof free volume to cohesive energy.
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| 收稿时间： | 1996-04-10 |
BARRIER PROPERTY AND STRUCTURE OF ACRYLONITRILE/ACRYLIC COPOLYMERS* |
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| YANG Zhenghua,LI Yuesheng.BARRIER PROPERTY AND STRUCTURE OF ACRYLONITRILE/ACRYLIC COPOLYMERS[J].Chinese Journal of Polymer Science,1997,0(3):236-241. |
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| Authors: | YANG Zhenghua LI Yuesheng |
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| Institution: | Changchvn Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun 130022 |
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| Abstract: | A series of acrylonitrile (AN) copolymers with methyl acrylate (MA) or ethyl acrylate(EA) as comonomer (5--23 wt%) was prepared by free-radical copolymerization. The per-meability coefficients of the copolymers to oxygen and carbon dioxide were measured at1.0 MPa and at 30℃, and those to water vapor also measured at 100% relative humidityand at 30℃. All the AN/acrylic copolymers are semicrystalline. As the acrylate contentincrease, the permeability coefficients of the copolymers to oxygen and carbon dioxide are increased progressively,but those to water vapor are decreased progressively.The gas permeability coefficients of the polymers were correlated with free-volume fractions or the ratio of free volume to cohesive energy. |
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| Keywords: | Barrer property Copolymer film Acrylonitrile Methyl acrylate Ethyl acrylate |
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