Ternary Polymer Composites for Gel Electrolytes via a Mixture Design Approach

混合實驗設計法對三成分複合式高分子膠態電解質之研究

鄭宗田(Tsung-Tien Cheng) ； 溫添進(Ten-Chin Wen)

《Journal of the Chinese Institute of Chemical Engineers》 31卷6期 (2000/11) Pp. 533-543

https://doi.org/10.6967/JCICE.200011.0533

摘要

本研究針對PEG、PTMG為基材的水性PU和PEO混合製成的複合膜有系統的分析其成分對電解液吸收量（Sw）與室溫導電度（σ25）的關係。透過混合物實驗規劃，將實驗結果進行迴歸分析，所得的半經驗式繪成等高線圖，以呈現各高分子成分間之加成性或削減性。結果顯示Sw最大值出現在X3（PEO 95%，WPU(PEG)5%），而σ25最大值（1.8 X 10-3Scm-1）則出現在三成分區（WPU(PEG)）19～38%，WPU(PTMG)9～21%，and PEO 47～68%）。實驗結果由分子結構推論分子間作用力可得合理的解釋。以高分子複合膜進行的熱分析結果應證了分子間作用力的推論。由導電度Arrhenius圖顯示複合式膠態電解質在σ25最大值範圍之組成自5℃至65℃之間導電度均高於其他組成，其導電活化能為5.67kcal mol-1。

並列摘要

A systematic modeling analysis for the swollen weight (Sw) and the room tempera;ure conductivity (σ25) of the composite electrolytes of polyethylene glycol based waterborne polyurethane-polytetramethylene glycol based polyurethane-polyethylene oxide (denoted as WPU (PEG)-WPU(PTMG)-PEO) was performed. Using a mixture design approach, empirical models are fitted and plotted as contour diagrams which facilitate revealing the synergistic/antagonistic effects among the mixed Polymers. The contour plots show that the maximum Sw appears at point X3 (PEO 95 %, WPU (PEG) 5 %), while the maximum (σ25 (1. 8 X 10-3 S cm-1) appears in the ternary region (WPU(PEG) 19 – 38%, WPU(PTMG) 9 – 21 %, and cm-1) appears in the ternary region (WPU(PEG) l9～38%, WPU(PTMG) 9～21%, and PEO 47～68%). The results are reasonably explained from the interactions among polymers on the basis of their molecular structures. The thermal analysis of the composite films is performed to demonstrate the speculations about the interactions among the mixed polymers. Arrhenius plots of conductivities reveal that the composite electrolytes within the maximumσ25 region possess the maximum conductivity from 5℃ to 65℃ with the activation energy of 5.67 kcal mol-1.

並列關鍵字

Composite Electrolyte ； Conductivity ； Swollen Weight ； Polymer Blending ； Mixture Design