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Mn2(CO)10-photomediated synthesis of poly(vinylidene fluoride)-b-poly(styrene sulfonate)
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SYSNO ASEP 0444813 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Mn2(CO)10-photomediated synthesis of poly(vinylidene fluoride)-b-poly(styrene sulfonate) Author(s) Černoch, Peter (UMCH-V) RID, ORCID
Petrova, Svetlana (UMCH-V) RID, ORCID
Černochová, Zulfiya (UMCH-V) RID, ORCID
Kim, J. S. (US)
Simpson, C. P. (US)
Asandei, A. D. (US)Source Title European Polymer Journal. - : Elsevier - ISSN 0014-3057
Roč. 68, July (2015), s. 460-470Number of pages 11 s. Language eng - English Country GB - United Kingdom Keywords polystyrenesulfonate ; poly(neopentyl styrenesulfonate) ; PVDF Subject RIV CD - Macromolecular Chemistry R&D Projects LH14038 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UMCH-V - RVO:61389013 UT WOS 000357230800038 EID SCOPUS 84930205109 DOI 10.1016/j.eurpolymj.2015.05.013 Annotation Mn2(CO)10-photomediated activation of perfluoro alkyl iodides under visible light was applied in the initiation of the polymerization of neopentyl styrene sulfonate (NeoSS) and of vinylidene fluoride (VDF). In the latter case, an iodine degenerative controlled radical polymerization also enabled the synthesis of PVDF-I with high chain end functionality, suitable for block copolymer synthesis. As such, quantitative Mn2(CO)10 activation of both PVDF-CH2-CF2-I and PVDF-CF2-CH2-I chain ends enabled the clean synthesis of PVDF-b-PNeoSS block copolymers. While subsequent deprotection of the neopentyl group was attempted by several methods, pure thermal decomposition was revealed to be more of a surface process, and while both (CH3)3Si-I and LiBr deprotections failed, NaN3 in dimethyl sulfoxide was proven to allow for a complete removal of the protecting group to cleanly afford PVDF-b-PSSNa. These procedures provide simpler, cleaner and powerful avenues towards the synthesis of well-defined sulfonated and fluorinated block copolymers for fuel cell membranes. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2016
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