A New Inverse GC Method for Separating Surface Retention Volume from Total Retention Volume for Characterization of the Surface Properties of Polymers at Temperatures above T g

Autor:	Mingjia He, Baoli Shi
Rok vydání:	2008
Předmět:	chemistry.chemical_classification Organic Chemistry Clinical Biochemistry Analytical chemistry Extrapolation Polymer Biochemistry Analytical Chemistry Volumetric flow rate chemistry Volume (thermodynamics) Inverse gas chromatography Lewis acids and bases Gas chromatography Glass transition
Zdroj:	Chromatographia. 69:567-570
ISSN:	1612-1112 0009-5893
DOI:	10.1365/s10337-008-0909-7
Popis:	This paper introduces a new inverse gas chromatographic method for separating surface retention volume (V s) from total retention volume (V n), to enable characterization of the surface properties of polymeric material with low T g. P(VDF-co-HFP) was chosen to prove the method. After correction for ‘inert’ solid support effect and extrapolation of the flow rate to zero, V s of every probe was separated successfully from V n. The surface properties of P(VDF-co-HFP) calculated from V s were: dispersive free energy 21.5 ± 0.2 mJ m−2, Lewis acid number, K a, 0.091 ± 0.002, and base number, K b, 0.209 ± 0.008.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::686a54342e382657fdc632c07875a61c https://doi.org/10.1365/s10337-008-0909-7 Zobrazit plný text záznamu Full text from SpringerLink