| DMS AND ~(13)C NMR STUDIES ON THE COMPATIBILITY AND DYNAMICS OF LATEX BIDIRECTIONAL IPNS AND LATEX IPN OF PVAc/PBA |
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| 作者姓名： | 晏欣 许肖龙 张宝真 姚树人 钱保功 |
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| 作者单位： | Naval Academy of Engineering，Wuhan 430033，Wuhan Institute of Physics. Academia Sinica，Wuhan 430071，Naval Academy of Engineering，Wuhan 430033，Naval Academy of Engineering，Wuhan 430033，Wuhan Institute of Physics，Academia Sinica，Wuhan 430071 |
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| 摘 要： | The compatibility and dynamics of latex bidirectional/nterpenetrating polymer networks (LBIPNs) and latex IPN(LIPN) of poly(vinyl acetate)(PVAc) and poly (butyl acrylate )(PBA) are investigated by means of dynamic mechanical spectroscopy (DMS) and nuclear magnetic resonance (NMR) techniques. The results of DMS show that the compatibility of the LBIPNs is much better than that of the corresponding LIPN and depends to, a large extent on the distribution of PVAc both in the core and in the shell. The results of NMR measurements indicate that the rotational correlation times of the side- groups of PBA in the LBIPN are longer than those in the LIPN. The relation between the ~(13)C linewidths of PBA and temperature is also discussed.
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| 收稿时间： | 1991-06-20 |
DMS AND 13C NMR STUDIES ON THE COMPATIBILITY AND DYNAMICS OF LATEX BIDIRECTIONAL IPNS AND LATEX IPN OF PVAc/PBA |
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| YAN Xin,XU Xiaolong,ZHANG Baozhen,YAO Shuren,QIAN Baogong.DMS AND ~(13)C NMR STUDIES ON THE COMPATIBILITY AND DYNAMICS OF LATEX BIDIRECTIONAL IPNS AND LATEX IPN OF PVAc/PBA[J].Chinese Journal of Polymer Science,1993,0(1):84-91. |
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| Authors: | YAN Xin XU Xiaolong ZHANG Baozhen YAO Shuren QIAN Baogong |
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| Institution: | 1. Naval Academy of Engineering; Wuhan 430033; 2. Wuhan Institute of Physics; Academia Sinica; Wuhan 430071 |
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| Abstract: | The compatibility and dynamics of latex bidirectional/nterpenetrating polymer networks (LBIPNs) and latex IPN(LIPN) of poly(vinyl acetate)(PVAc) and poly (butyl acrylate )(PBA) are investigated by means of dynamic mechanical spectroscopy (DMS) and nuclear magnetic resonance (NMR) techniques. The results of DMS show that the compatibility of the LBIPNs is much better than that of the corresponding LIPN and depends to, a large extent on the distribution of PVAc both in the core and in the shell. The results of NMR measurements indicate that the rotational correlation times of the side- groups of PBA in the LBIPN are longer than those in the LIPN. The relation between the ~(13)C linewidths of PBA and temperature is also discussed. |
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| Keywords: | Compatibility Dynamics Dynamic Mechanical Spectroscopy ~(13)C Spin-Lattice Relaxation Time and Linewidth Latex Bidirectional IPN and Latex IPN Poly(vinyl acetate) Poly (butyl acrylate) |
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