The Structure of Polymer Networks

Abstract

Network polymers comprise one of the most important classes of polymeric materials, from both a theoretical and a commercial perspective. The linking together of macromolecular chains usually through permanent covalent bonds confers unique properties to network polymers. These may be increased modulus and elasticity, lower rates of creep, solvent resistance, high temperature stability, to name just a few. The applications of network polymers are thus myriad. Thermosetting resins comprise the majority of polymers used in structural applications. Crosslinkedpolyolefins are ubiquitous as automotive tyres, as a component of asphalt, as o-rings, sheeting, in clothing and footware and so on. In more recent times, chemically crosslinked networks are becoming important in the field of biomaterials, as supports for tissue growth and for drug delivery. Many other applications can be listed.