PMID- 20936864 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20110224 LR - 20101029 IS - 1520-5207 (Electronic) IS - 1520-5207 (Linking) VI - 114 IP - 43 DP - 2010 Nov 4 TI - Effects of a block copolymer as multifunctional fillers on ionic conductivity, mechanical properties, and dimensional stability of solid polymer electrolytes. PG - 13637-43 LID - 10.1021/jp105816s [doi] AB - Solid polymer electrolytes with high ionic conductivities, good mechanical properties, dimensional stability, and easy processability were obtained from poly(ethylene oxide)-block-polyethylene (PEO-b-PE)-loaded poly(ethylene oxide) (PEO)/lithium perchlorate (LiClO(4)). In this article, we reported that the ionic conductivity and mechanical properties were remarkably increased due to the addition of the PEO-b-PE compared to that of PEO/LiClO(4) electrolyte. Scanning electron microscope (SEM), optical micrograph, and X-ray diffraction (XRD) results indicate that the addition of the copolymer, PEO-b-PE, decreased the defects of the PEO electrolyte films. Good dimensional stability was observed by dynamic rheological techniques up to 100 degrees C (higher than the melting point of PEO, 65 degrees C). A bicontinuous phase structure, that is crystalline PE domains within a matrix of PEO/salt, was proposed as the mechanism for such comprehensive enhancements in the ionic conductivity, mechanical properties, and dimensional stability obtained simultaneously in this study through a facile approach based on incorporation of a copolymer. FAU - Ji, Jianying AU - Ji J AD - School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164, USA. FAU - Li, Bin AU - Li B FAU - Zhong, Wei-Hong AU - Zhong WH LA - eng PT - Journal Article PL - United States TA - J Phys Chem B JT - The journal of physical chemistry. B JID - 101157530 EDAT- 2010/10/13 06:00 MHDA- 2010/10/13 06:01 CRDT- 2010/10/13 06:00 PHST- 2010/10/13 06:00 [entrez] PHST- 2010/10/13 06:00 [pubmed] PHST- 2010/10/13 06:01 [medline] AID - 10.1021/jp105816s [doi] PST - ppublish SO - J Phys Chem B. 2010 Nov 4;114(43):13637-43. doi: 10.1021/jp105816s.