EFFECT OF ACRYLIC CONTENTS ON MORPHOLOGY AND PROPERTIES OF POLYURETHANE/ACRYLATE NANOSTRUCTURED POLYMERS

PERUZZO, P.J.; ANBINDER, P.S.; PARDINI, O.R.; AMALVY, J.I.

Lima

Simposio; SLAP´08 (XI Simposio Latinoamericano de Polímeros y IX Congreso Iberoamericano de Polímeros); 2008

Aqueous polyurethane (PU) dispersions are widely used for industrial applications such as adhesives and coatings. In addition, they represent a major trend of PU development because of increasing concern about environmental pollution. However, the interest for new materials which have intimate combination of non compatible components at the nanoscale has attracted significant attention because they offer prospects of new and synergistic properties. In this way, the polymerization of acrylic monomers in the presence of preformed polyurethane chains with polymerizable terminal vinyl groups is a useful method which lead to cost reduction, besides different properties of materials depending on the amount of acrylic incorporated [1]. These products, which are known as polyurethane/acrylate hybrids, form nanostructured polymers. The characterization of the polymer morphology and how it contributed to properties and behavior as materials is very important because it allows choosing the best polymer composition to achieve the desired final product. In this work, the characterization of polyurethane/acrylate hybrids with different acrylic content is presented and discussed.