EFFECTS OF HOSTILE ENVIRONMENTS

Orman, S., and Kerr, S., Effect of Hostile Environments on Adhesive Joints, in Aspects of Adhesion, vol. 6, J. Alner, ed., University of London Press, London, 1971, p. 64. 

In The Effects of Hostile Environments on Coatings and Plastics Gamer, D., et al. ... 

This volume is composed primarily of the expanded papers from the symposium, The Effects of Hostile Environments on Plastics A Symposium Held in Honor of Plastics Pioneer Raymond B. Seymour. Additional papers were included for better coverage of the overall topic. Each session of the symposium had a special theme introduction and background, bulk properties, and surface characteristics. 

In this volume, the chapters have been divided into four sections. The first serves as an overview of and introduction to the effects of hostile environments on the micro- and macrostructure of polymers. The three chapters included in this section examine heat and radiation effects, and to a lesser extent, shear and solvent effects. 

The seven chapters of the third section examine the effects of hostile environments on bulk properties. The environments range from acids or pickling baths to water. The materials range from polyolefins to specialty block copolymers. The final chapter in this section contains recent findings about the effect of ozone on bulk properties. 

This Symposium on "The Effects of Hostile Environments on Plastics" is to honor a Plastics Pioneer, Raymond B. Seymour. 

I have been asked to give an overview of the effects of hostile environment on plastics. Emphasizing not the degradation or destruction of the bulk polymeric material and its properties, but rather what is happening to individual macromolecules in hostile environments, and also to larger assemblies of them. The hostile environments to be discussed are heat, radiation, mechanical stresses and the presence of oxygen in combination with heat and radiation. 

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