Determination of Primary Relaxation Temperatures and Melting Points of Ethylene Vinyl Acetate Copolymers

Author： Arsac A.   Carrot C.   Guillet J.  

Publisher： Springer Publishing Company

ISSN： 1388-6150

Source： Journal of Thermal Analysis and Calorimetry, Vol.61, Iss.3, 2000-09, pp. : 681-685

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

Previous Menu Next

Abstract

The relationship between copolymer composition and transition temperatures was studied by means of differential scanning calorimetric analysis and dynamic mechanical spectroscopy. Six samples of ethylene vinyl acetate (EVA) copolymers containing from 5 to 40 mass per cent of vinyl acetate (VA) were studied. The differential scanning calorimetric analysis revealed that each EVA copolymer displays two endothermic peaks (Tm1 and Tm2) in the melting zone. Dynamic mechanical spectroscopy was used to determine the primary relaxation temperature (Tα) for EVA copolymers. This latter characteristic is relatively insensitive to the level of vinyl acetate contained in the copolymer and is influenced by the pulsation frequency ω, also named the angular frequency.

Related content

Quantitative Determination of Vinyl Acetate Content in Ethylene Vinyl Acetate Copolymers Using Multiple Internal Reflection Spectroscopy

By French Alfred R.   Benham John V.   Pullukat Thomas J.  

Applied Spectroscopy, Vol. 28, Iss. 5, 1974-09 ,pp. : 477-479 (3)

Society for Applied Spectroscopy

Access to resources Recommend Favorite

Phase transitions and relaxation processes in ethylene-vinyl acetate copolymers probed by fluorescence spectroscopy

By Yamaki S.B.   Prado E.A.   Atvars T.D.Z.  

European Polymer Journal, Vol. 38, Iss. 9, 2002-09 ,pp. : 1811-1826 (16)

Elsevier

Access to resources Recommend Favorite

Thermal Characterization of Vinyl Acetate—Ethylene Copolymers

By Gupta N.   Srivastava R.   Choudhary V.   Varma I.   Patnaik S.  

Journal of Thermal Analysis and Calorimetry, Vol. 58, Iss. 3, 1999-12 ,pp. : 509-515 (7)

Springer Publishing Company

Access to resources Recommend Favorite

Determination of peroxides and hydroperoxides with 2,2-diphenyl-1-picrylhydrazyl (DPPH): Application to ozonized ethylene vinyl acetate copolymers (EVA)

By Fargere T.   Abdennadher M.   Delmas M.   Boutevin B.  

European Polymer Journal, Vol. 31, Iss. 5, 1995-05 ,pp. : 489-497 (9)

Elsevier

Access to resources Recommend Favorite

Phase equilibria of poly(ethylene-co-vinyl acetate) copolymers in subcritical and supercritical ethylene and ethylene-vinyl acetate mixtures

By Folie B.   Gregg C.   Luft G.   Radosz M.  

Fluid Phase Equilibria, Vol. 120, Iss. 1, 1996-06 ,pp. : 11-37 (27)

Elsevier

Access to resources Recommend Favorite