The second edition of “Professor’s Corner” included a discussion about the fundamental physical property differences between low molecular mass materials and polymers1. These included differences in flexibility, melting point and glass transition temperature (Tg), as well as the rheological properties of liquids or solutions. In this edition, we will take a closer look at … [Read more...] about Structure and Property Relationships for Polymers
Polymers
The Science of UV/EB Polymerization
The first edition of this column included a brief “Introduction to Polymer Science.”1 Polymeric materials were defined as those containing molecules of very large size and molecular mass. These “macromolecules” then were classified into three different categories: linear polymers, branched polymers and crosslinked polymers. Any given sample may contain mixtures of two or more … [Read more...] about The Science of UV/EB Polymerization
Simultaneous Monitoring of Property Development and Reactive Group Conversion in Photopolymer Systems
By Parag K. Shah, Department of Chemical and Biological Engineering, University of Colorado Boulder and Jeffrey W. Stansbury, Department of Craniofacial Biology, School of Dental Medicine, University of Colorado Denver The performance of materials in the UV industry for applications such as coatings, adhesives, dental materials and 3D printing depends on the ultimate … [Read more...] about Simultaneous Monitoring of Property Development and Reactive Group Conversion in Photopolymer Systems
Properties of Silicone Modified UV-Cured Acrylate and Epoxy Coatings Films
by Drs. Bob Ruckle and Tom Seung-Tong Cheungm, Siltech Corporation A wide variety of polymers are used as resins in coatings systems. Often defined by their reactive groups, the myriad of resins offer a wide-range of properties. In the coatings industry, acrylate, epoxy, urethane and polyester coatings are all quite common and have associated typical properties and … [Read more...] about Properties of Silicone Modified UV-Cured Acrylate and Epoxy Coatings Films