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Fractional complexation in a miscible polymer blend. Calorimetry and size exclusion chromatography
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SYSNO ASEP 0429259 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Fractional complexation in a miscible polymer blend. Calorimetry and size exclusion chromatography Tvůrce(i) Kratochvíl, Jaroslav (UMCH-V) RID
Šturcová, Adriana (UMCH-V) RID
Sikora, Antonín (UMCH-V) RID
Dybal, Jiří (UMCH-V) RID, ORCIDZdroj.dok. Polymer International. - : Wiley - ISSN 0959-8103
Roč. 63, č. 8 (2014), s. 1406-1413Poč.str. 8 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova miscible blend ; interpolymer complex ; residual phase Vědní obor RIV CD - Makromolekulární chemie CEP IAA200500903 GA AV ČR - Akademie věd GAP108/12/0703 GA ČR - Grantová agentura ČR Institucionální podpora UMCH-V - RVO:61389013 UT WOS 000338994700010 EID SCOPUS 84903579757 DOI 10.1002/pi.4729 Anotace Poly(N-methyldodecano-12-lactam) (PMDL) is miscible with poly(4-vinylphenol) (PVPh). In the system PMDL + PVPh + tetrahydrofuran containing low-molar-mass polymer pair, this miscible blend is soluble in the solvent. In this work, it has been found that the system containing high-molar-mass polymer pair undergoes associative phase separation into a gel-like interpolymer complex and a soluble residual phase (RP). The complex and RP samples were characterized using differential scanning calorimetry, size exclusion chromatography and thermogravimetric analysis. The average molar ratio of PMDL to PVPh in the complex is 1:2, considered an optimum composition of the interpolymer complex. The complex shows higher glass transition temperature and higher thermal stability than the RP. Formation of the interpolymer complex in the studied system and differences in its properties from the RP are caused by higher molar mass/length of associated polymer chains as a result of fractionation during which the high-molar-mass fraction forms the gel-like interpolymer complex and the low-molar-mass fraction forms the soluble RP. Pracoviště Ústav makromolekulární chemie Kontakt Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Rok sběru 2015
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