000129989 001__ 129989
000129989 005__ 20240202150201.0
000129989 0247_ $$2doi$$a10.1556/JPC.26.2013.1.1
000129989 0248_ $$2sideral$$a82696
000129989 037__ $$aART-2013-82696
000129989 041__ $$aeng
000129989 100__ $$0(orcid)0000-0002-8701-9745$$aJarne, C.
000129989 245__ $$aRevisiting molecular weight distribution of polystyrenes using adsorption high-performance thin-layer chromatography
000129989 260__ $$c2013
000129989 5060_ $$aAccess copy available to the general public$$fUnrestricted
000129989 5203_ $$aA repeatable separation of polystyrenes according to MW, from 1920 to 520000 u.m.a, has been obtained under adsorption conditions using a method that comprises the use of Lichrospher HPTLC plates, and a controlled, isocratic elution with a 78:22 (v/v) mixture of cyclohexane (Cy)-tetrahydrofuran (THF). Likewise, UV-densitometric quantification of polystyrenes in mixtures can be achieved, by an intra-plate or an inter-plate procedure, using the corresponding polystyrene calibration curve. In the case or overlapped, unresolved peaks, an average curve of the corresponding polystyrenes can be used. Migration of polystyrenes strongly varies with slight variations in the relative proportion of Cy and THF in the mobile phase. This allows different ranges of MW to be separated as a function of mobile phase composition. Other factors influencing repeatability have been identified. Some reasons have been advanced to explain the current lack of activity in the research on polymer characterization by HPTLC. Old literature results concerning polystyrene separation have also been discussed in the light of modern HPTLC instrumentation. Developed method provides similar information on Molecular Weight Distribution (MWD) to that obtained using Gel Permeation Chromatography (GPC). Advantages and limitations of HPTLC for obtaining polymer MWD have also been discussed.
000129989 536__ $$9info:eu-repo/grantAgreement/ES/MICINN/FEDER/CTQ2008- 00959
000129989 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000129989 590__ $$a0.67$$b2013
000129989 591__ $$aCHEMISTRY, ANALYTICAL$$b65 / 75 = 0.867$$c2013$$dQ4$$eT3
000129989 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000129989 700__ $$aCebolla, V. L.
000129989 700__ $$aMembrado, L.
000129989 700__ $$0(orcid)0000-0001-6928-5516$$aGálvez, E. M.
000129989 700__ $$0(orcid)0000-0002-4887-1652$$aVela, J.$$uUniversidad de Zaragoza
000129989 700__ $$0(orcid)0000-0003-2607-7834$$aGarriga, R.$$uUniversidad de Zaragoza
000129989 7102_ $$12009$$2750$$aUniversidad de Zaragoza$$bDpto. Química Analítica$$cÁrea Química Analítica
000129989 7102_ $$12012$$2755$$aUniversidad de Zaragoza$$bDpto. Química Física$$cÁrea Química Física
000129989 773__ $$g26, 1 (2013), 5-13$$pJPC, J. planar chromatogr. mod. TLC$$tJPC-JOURNAL OF PLANAR CHROMATOGRAPHY-MODERN TLC$$x0933-4173
000129989 8564_ $$s1520520$$uhttps://zaguan.unizar.es/record/129989/files/texto_completo.pdf$$yPostprint
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000129989 909CO $$ooai:zaguan.unizar.es:129989$$particulos$$pdriver
000129989 951__ $$a2024-02-02-14:57:29
000129989 980__ $$aARTICLE