Journal ArticleDOI
Poly(ethylene oxide)/poly(ethyl methacrylate) blends: Crystallization, melting behavior, and miscibility
Sossio Cimmino,Ezio Martuscelli,Clara Silvestre,Maurizio Canetti,Claudia de Lalla,Alberto Seves +5 more
TLDR
In this paper, an investigation of isothermal crystallization and thermal behavior of poly(ethylene oxide)/poly(ethyl methacrylate) (PEO/PEMA) blends is reported.Abstract:
Results of an investigation of isothermal crystallization and thermal behavior of poly(ethylene oxide)/poly(ethyl methacrylate) (PEO/PEMA) blends are reported. The blend composition and the crystallization temperature strongly influence the crystallization process from the melt and the melting temperature of PEO. The addition of PEMA to PEO causes a depression in the spherulite growth rate, in the overall kinetic crystallization constant, and in the melting temperature. Experimental data on the radial growth rate G and overall kinetic rate constant Kn are analyzed by means of the latest kinetic theory. From this analysis it emerges that the crystallization of pure PEO and PEO in the blend conforms to the regime I process of surface secondary nucleation. The depression of the melting temperature cannot be explained only in terms of a diluent effect due to the compatibility of the two components in the melt. Annealing and morphological effects, dependent on composition and time, must also be taken into account.read more
Citations
More filters
Journal ArticleDOI
Kinetics of polymer crystallisation
TL;DR: In this paper, the effect of polymer blending on polymer crystallization is discussed on the basis of two fundamental factors: nucleation and spherulite growth, and it is demonstrated that non-isothermal crystallisation under varying cooling rates can be described and predicted through an integral method.
Journal ArticleDOI
Spherulite growth rates in binary polymer blends
TL;DR: In this article, a detailed analysis of the various factors that contribute to increase or decrease the growth rate of spherulites is reported and supported by several examples, mainly with regard to miscibility of the components.
Journal ArticleDOI
Crystallization kinetics of poly(ε-caprolactone) in miscible thermosetting polymer blends of epoxy resin and poly(ε-caprolactone)
Qipeng Guo,Gabriël Groeninckx +1 more
TL;DR: In this article, the results of a study on the isothermal crystallization kinetics and melting behavior of poly(e-caprolactone) (PCL) in miscible thermosetting polymer blends of epoxy resin (ER) and PCL are reported.
Journal ArticleDOI
Amorphous poly(ethylene terephthalate)/poly(butylene terephthalate) blends: miscibility and properties
TL;DR: In this article, the thermal behavior, miscibility, crystallization and mechanical properties of poly(ethylene terephthalate) (PET)/poly(butylene Terephthalates) (PBT) blends were investigated after three years of storage at − 15°C.
Journal ArticleDOI
Crystallization and thermal behaviour of poly (d(−) 3-hydroxybutyrate)/poly(epichlorohydrin) blends
E.Dubini Paglia,Pier Luigi Beltrame,Maurizio Canetti,Alberto Seves,Bruno Marcandalli,Ezio Martuscelli +5 more
TL;DR: In this article, atactic poly(epichlorohydrin) (PECH) was blended in a wide range of ratios with poly(D(−)3-hydroxybutyrate) (PHB) isolated from Alcaligenes eutrophus cultures.
Related Papers (5)
Melting Point Depression and Kinetic Effects of Cooling on Crystallization in Poly(vinylidene fluoride)-Poly(methyl methacrylate) Mixtures
Toshio Nishi,T. T. Wang +1 more