| An analysis of fractal geometry of macromolecular gelation |
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| 作者姓名： | 左榘 陈天红 冉少峰 何炳林 董宝中 生文君 杨恒林 |
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| 作者单位： | State Key Laboratory of Functional Polymeric Materials for Adsorption and Separation，Department of Chemisry，Nankai University，Tianjin 300071，China，Department of Chemisry，Nankai University，Tianjin 300071，China，Department of Chemisry，Nankai University，Tianjin 300071，China，Department of Chemisry，Nankai University，Tianjin 300071，China，Institute of High Energy Physics，Chinese Academy of Sciences，Beijing 100039，China，Institute of High Energy Physics，Chinese Academy of Sciences，Beijing 100039，China，Institute of High Energy Physics，Chinese Academy of Sciences，Beijing 100039，China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China，the Natural Science Foundation of Tianjin Municipality，the State Key Laboratory of Functional Polymeric Materials for Adsorption and Separation(SKLFPMAS), Nankai University. It is al |
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| 摘 要： | With fractal geometry theory and based on experiments, an analysis of fractal geometry behavior of gelation of macromolecules was carried out. Using the cross-linking copolymerization of styrene-divinylbenzene (DVB) as an example, through the determinations of the evolution of the molecular weight, size and the dependence of scattering intensity on the angle of macromolecules by employing laser and synchrotron small angle X-ray scattering, respectively, this chemical reaction was described quantitatively, its fractal behavior was analyzed and the fractal dimension was also measured. By avoiding the complex theories on gelation, this approach is based on modern physical techniques and theories to perform the analysis of the behavior of fractal geometry of macromolecular gelation and thus is able to reveal the rules of this kind of complicated gelation more essentially and profoundly.
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An analysis of fractal geometry of macromolecular gelation |
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| ZUO Ju CHEN Tianhong RAN ShaofengHE Binglin.An analysis of fractal geometry of macromolecular gelation[J].Science in China(Chemistry),1996(5). |
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| Authors: | ZUO Ju CHEN Tianhong RAN ShaofengHE Binglin |
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| Abstract: | With fractal geometry theory and based on experiments, an analysis of fractal geometry behavior of gelation of macromolecules was carried out. Using the cross-linking copolymerization of styrene-divinylbenzene (DVB) as an example, through the determinations of the evolution of the molecular weight, size and the dependence of scattering intensity on the angle of macromolecules by employing laser and synchrotron small angle X-ray scattering, respectively, this chemical reaction was described quantitatively, its fractal behavior was analyzed and the fractal dimension was also measured. By avoiding the complex theories on gelation, this approach is based on modern physical techniques and theories to perform the analysis of the behavior of fractal geometry of macromolecular gelation and thus is able to reveal the rules of this kind of complicated gelation more essentially and profoundly. |
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| Keywords: | gelation fractal geometry styrene-divinylbenzene |
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