𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Dynamic viscoelastic properties of blends of poly(ethylene-co-vinyl acetate) and a modified starch

✍ Scribed by Belén Jauregui; María Eugenia Muñoz; Anton Santamaria

Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
767 KB
Volume
196
Category
Article
ISSN
1022-1352

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

We report dynamic viscoelastic measurements of a series of binary blends of hydroxyethyl ether of starch and ethylene‐vinyl acetate copolymer (EVA), which are correlated with the granular arrangement of the starch derivative within the EVA matrix and the adhesion between both phases, studied by scanning electron microscopy. The rheological properties are similar to those of polymers filled with solid spheres, although we found a minimum in the Newtonian viscosity and a maximum in the elasticity at low starch derivative concentrations, which have been attributed to a change in the density of chain entanglements.

📜 SIMILAR VOLUMES

Solid-state NMR and morphological studie
Solid-state NMR and morphological studies of poly(ethylene-co-vinyl acetate)/poly(vinyl acetate) blends
✍ Cláudia M. G. De Souza; Maria Inês B. Tavares 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 511 KB

To obtain a correlation among structure-morphology-mobility-compatibility properties of poly(ethylene-co-vinyl acetate) (EVA)/poly(vinyl acetate) (PVAc) blends, we have used scanning electron microscopy and solid-state nuclear magnetic resonance in our investigations. The results are discussed in te

Graft copolymers from modified ethylene/
Graft copolymers from modified ethylene/vinyl acetate copolymers, 2. Synthesis of polystyrene-grafted poly[ethylene-co-(vinyl acetate)] and evaluation of its compatibilizing effect in polystyrene/poly[ethylene-co-(vinyl acetate)] blends
✍ Ronilson V. Barbosa; Bluma G. Soares; Ailton S. Gomes 📂 Article 📅 1994 🏛 John Wiley and Sons 🌐 English ⚖ 701 KB

## Abstract Polystyrene‐grafted poly[ethylene‐__co__‐(vinyl acetate)] (EVA‐g‐PS) has been synthesized from functionalized polystyrene containing acyl chloride end group (PS‐COCl) and partly (5%) hydrolyzed poly[ethylene‐__co__‐(vinyl acetate)] (EVALVA‐5%). The graft efficiency is ca. 100% when low‐