Novel Polymer Solid Electrolytes prepared from Polyurethane Cationomers

由聚氨酯阳离子聚合物制备的新型聚合物固体电解质

• 批准号: 10650866
• 负责人: IKEDA Yuko
• 金额: $ 2.24万
• 依托单位: KYOTO INSTITUTE OF TECHNOLOGY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10650866/
• 关键词: Polymer solid electrolyte; Cationomer; Polyurethane; Ionene; Elastomer; Synthesis; Morphology; Physical properties; モルホロジー; ポリ(オキシテトラメチレン); ポリウレタンカチオノマー; ポリ(テトラヒドロフラン); 固体電解質; リビング重合; 力学的性質; ミクロ相分離構造; 導電率; イオン点

In order to prepare novel polymer solid electrolytes with an excellent ionic conductivity, the molecular design of ionic segment for ionic elastomer was carried out in this study. As a matrix of the solid electrolytes, the mobility of polymer chain is important because the mobile segments are preferable for ionic conduction and the flexible chains give a good adhesion between the matrix and electrode. Therefore, an elastomer is expected as a best polymer solid electrolyte among the polymers. Additionally, a thermoplastic elastomer has several advantages as a matrix for polymer solid electrolyte from the viewpoints of recycling and processability. It is because the elastomer shows the rubber elasticity at room temperature without chemical crosslinking. Thus, novel polyurethane cationomer and ionene elastomer were synthesized by using a living cationic polymerization of tetrahydrofuran. Especially, the new oligomeric ionic polyols were synthesized for the preparation of polyurethane cationomers. The mechanical properties and thermal properties of obtained ionic elastomers were found to be excellent as a solid electrolyte. Since the morphology of ionic elastomers reflected not only the performance but also the functionality, the relationship between the structure and properties was investigated by dynamic mechanical analysis, differential scanning calorimetry and small-angle X-ray scattering measurements. Consequently, the degree of aggregation of ionic segments of a novel aliphatic ionene elastomer composed of dimethyl ammonium group and poly (oxytetramethylene) was found to be smaller than those of dicationic type ionene elastomers reported. This observation suggests that the diffraction of ionic species in the matrix of aliphatic ionene elastomer may be high. The measurement of ionic conductivity of the obtained elastomers is conducting after doping the lithium perchlorate in the matrix using the impedance analyzer.

为了制备具有出色的离子电导率的新型聚合物固体电解质，在本研究中进行了离子弹性体的离子段的分子设计。作为固体电解质的矩阵，聚合物链的迁移率很重要，因为移动片段比离子传导更可取，并且柔性链在矩阵和电极之间具有良好的粘附。因此，预计弹性体是聚合物中最佳的聚合物固体电解质。此外，从回收和加工性的角度来看，热塑性弹性体具有多个优势作为聚合物固体电解质的基质。这是因为弹性体在室温下显示橡胶弹性，而无需交联。因此，通过使用四氢呋喃的活阳离子聚合合成新型聚氨酯阳离子和离子弹性体。尤其是，将新的寡离子多元醇合成以制备聚氨酯阳离子。发现获得的离子弹性体的机械性能和热性能是固体电解质的出色。由于离子弹性体的形态不仅反映了性能，而且反映了功能，因此通过动态机械分析，差异扫描量热法和小角度X射线散射测量来研究结构和性质之间的关系。因此，发现由二甲基铵基组成的新型脂肪族离子弹性体和聚（氧甲基甲基）组成的新型脂肪族离子弹性体的聚集程度小于报道的二氧化碳型弹性体的弹性体。该观察结果表明，脂肪族离子弹性体基质中离子物种的衍射可能很高。使用阻抗分析仪在基质中掺杂锂硫酸锂后，所获得的弹性体的离子电导率的测量正在进行。

项目成果

池田裕子: "末端セグメントにイオン点を有するプレポリマーから合成したポリウレタンカチオノマー" 日本ゴム協会誌. 72・2. 96-101 (1999)

Yuko Ikeda：“由末端链段具有离子点的预聚物合成的聚氨酯阳离子聚合物”日本橡胶协会杂志72·2（1999）。

池田裕子: "末端セグメントにイオン点を有するプレポリマーから合成したポリウレタンカチオノマー"日本ゴム協会誌. 72. 96-101 (1999)

Yuko Ikeda：“由末端链段具有离子点的预聚物合成的聚氨酯阳离子聚合物”日本橡胶协会杂志 72. 96-101 (1999)。