Search: onr:"swepub:oai:lup.lub.lu.se:54987c02-35bf-4fd8-91f8-017b44a4f1e6" > Synthesis of novel ...
Fältnamn | Indikatorer | Metadata |
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000 | 02688naa a2200289 4500 | |
001 | oai:lup.lub.lu.se:54987c02-35bf-4fd8-91f8-017b44a4f1e6 | |
003 | SwePub | |
008 | 160401s2000 | |||||||||||000 ||eng| | |
024 | 7 | a https://lup.lub.lu.se/record/1507622 URI |
024 | 7 | a https://doi.org/10.1021/ma00078412 DOI |
040 | a (SwePub)lu | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a art2 swepub-publicationtype |
072 | 7 | a ref2 swepub-contenttype |
100 | 1 | a Jannasch, Patricu Lund University,Lunds universitet,Centrum för analys och syntes,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Centre for Analysis and Synthesis,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH4 aut0 (Swepub:lu)poly-pja |
245 | 1 0 | a Synthesis of novel aggregating comb-shaped polyethers for use as polymer electrolytes |
264 | c 2000-10-25 | |
264 | 1 | b American Chemical Society (ACS),c 2000 |
520 | a Polyethers having well-defined comb-shaped architectures were prepared by using poly(4-hydroxystyrene) (PHSt) as a multifunctional initiator for graft polymerization of either ethylene oxide (EO) or a mixture of EO and propylene oxide (PO). The grafting process was performed in 1,4-dioxane using NaH as ionizer for the PHSt hydroxyl groups. The precursor PHSt was prepared by first polymerizing 4-tert-butoxystyrene, using butyllithium as initiator in THF at -60 degreesC, and then deprotecting the butoxy groups. Finally, the terminal hydroxyl groups of the polyether grafts were end-capped with hexadecanoyl units through esterification. The monomer addition sequence in the graft copolymerizations with the same EO/PO feed ratio proved to have a great influence on the crystallization temperature and the crystallinity of the grafts. Also, the end-capping was found to reduce the degree of crystallinity as compared to the corresponding uncapped polymers. Solid polymer electrolytes containing lithium triflate (LiSO3-CF3) salt had ambient temperature ion conductivities of similar to 10(-5) S/cm at [Li]/[O] = 0.025. Thermal analysis of the electrolytes showed that the polymers aggregated through phase separation of the hexadecanoyl chain ends. | |
650 | 7 | a NATURVETENSKAPx Kemi0 (SwePub)1042 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Chemical Sciences0 (SwePub)1042 hsv//eng |
710 | 2 | a Centrum för analys och syntesb Kemiska institutionen4 org |
773 | 0 | t Macromoleculesd : American Chemical Society (ACS)g 33:23, s. 8604-8610q 33:23<8604-8610x 0024-9297x 1520-5835 |
856 | 4 | u http://dx.doi.org/10.1021/ma0007841y FULLTEXT |
856 | 4 8 | u https://lup.lub.lu.se/record/150762 |
856 | 4 8 | u https://doi.org/10.1021/ma0007841 |
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