Polymer Stress Reactions, Volume 2: Experiments provides an overall world perspective for the field of polymer reactions caused by stress. For the reader's benefit the book is developed along several lines for ease of reference. The same studies may thus be discussed from different points of view such as type of equipment, polymer used, basic parameters, and the polymer state. Presentation by polymer state is a fundamental, i.e., a molecular approach to mechanochemistry. The discussion of each nominal polymer state includes a description of those parameters and variables which are germane to the mechanically induced reactions in that state. In contrast, the variables which are generally applicable to mechanochemistry, such as temperature and shear intensity, are subsequently treated individually. The present volume contains two main chapters. The first reviews the principal experiments on each of the most researched polymers, both natural and synthetic; the second discusses studies of the polymer state in mechanochemistry.