Siloxane-Acrylate IPN and Graft Polymer Latexes

摘要

Silicon polymers are of great importance by virture of their specific properties such as low surface energy, low glass transition temperature, high flexibility, high hydrophobicity and good heat resistance. However, applications of silicon polymers are often limited due to economic reasons (high price). In contrast to this, (meth)acrylate polymers have been widely used in many industries from varnishes to adhesives. Nevertheless, (meth)acrylate polymers have their serious disadvantages such as their brittleness at low temperature, viscidity at high temperature, poor water repellency and poor electric insulating properties. Efforts to improve performance of acrylate polymers by copolymerization have been done, in particular with radically reactive silicon monomers [1-5], In this work, essays were attempted to prepare polymer latex consisting of alkyl acrylate copolymer grafted by polysiloxane and/or semi-IPN latexes, in which cross-linking is controllable for siloxane polymer chains simply by pH control.