| SINGLE IONIC CONDUCTI0N OF POLYSILOXANE CONTAINING PROPYLENE CARBONATE GROUP AND LITHIUM POLYMERIC SALTS |
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| 作者姓名： | 陈希文 方世壁 郝宁 江英彦 |
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| 作者单位： | Institute of Chemistry，Academia Sinica，Beijing 100080，Institute of Chemistry，Academia Sinica，Beijing 100080，Institute of Chemistry，Academia Sinica，Beijing 100080，Institute of Chemistry，Academia Sinica，Beijing 100080 |
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| 基金项目： | This work was supported by the National Natural Science Foundation of China. |
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| 摘 要： | The polysiloxane containing propylene carbonate side group and several lithium poly-meric salts were synthesized. The structure were confirmed by IR, NMR and XPS. Theblending systems of polysiloxane containing propylene carbonate group with different lithiumpolymeric salts were studied by ion conductivity XPS and DSC. Different lithium poly-meric salts in the blending system lead to conductivity arranged in the following sequence:poly(lithium ethylenebenzene sulfonate methylsiloxane)>poly(lithium propionate methyl-siloxane)>poly(lithium propylsulfonate methylsiloxane)>poly(lithium styrenesulfonate).In the blending system the best single ion conductivity was close to 10~(-5) Scm~(-1) at roomtemperature. XPS showed that at low lithium salt concentration the conductivity increasedwith the increasing content of lithium salt, in consequence of the increase of free ion andsolvent separated ion pair. At high lithium salt concentration the free ion was absent andthe solvent-separated ion pair functioned as carrier.
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| 收稿时间： | 1996-01-17 |
SINGLE IONIC CONDUCTI0N OF POLYSILOXANE CONTAINING PROPYLENE CARBONATE GROUP AND LITHIUM POLYMERIC SALTS* |
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| CHEN Xiwen,FANG Shibi,HAO Ning,JIANG Yingyan.SINGLE IONIC CONDUCTI0N OF POLYSILOXANE CONTAINING PROPYLENE CARBONATE GROUP AND LITHIUM POLYMERIC SALTS[J].Chinese Journal of Polymer Science,1996,0(4):368-375. |
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| Authors: | CHEN Xiwen FANG Shibi HAO Ning JIANG Yingyan |
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| Institution: | Institute of Chemistry; Academia Sinica; Beijing 100080 |
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| Abstract: | The polysiloxane containing propylene carbonate side group and several lithium poly-meric salts were synthesized. The structure were confirmed by IR, NMR and XPS. Theblending systems of polysiloxane containing propylene carbonate group with different lithiumpolymeric salts were studied by ion conductivity XPS and DSC. Different lithium poly-meric salts in the blending system lead to conductivity arranged in the following sequence:poly(lithium ethylenebenzene sulfonate methylsiloxane)>poly(lithium propionate methyl-siloxane)>poly(lithium propylsulfonate methylsiloxane)>poly(lithium styrenesulfonate).In the blending system the best single ion conductivity was close to 10~(-5) Scm~(-1) at roomtemperature. XPS showed that at low lithium salt concentration the conductivity increasedwith the increasing content of lithium salt, in consequence of the increase of free ion andsolvent separated ion pair. At high lithium salt concentration the free ion was absent andthe solvent-separated ion pair functioned as carrier. |
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| Keywords: | Single ionic conductor Polysiloxane containing propyl carbonate group Polymer Li salts XPS |
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