Polymer physics is the branch of physics that deals with polymers, their fluctuations, mechanical properties, polymer structures and also with the kinetics. polymer physics encloses the physical properties, structure and dynamics of polymers (both synthetic and naturally occurring) in various forms including semi-crystalline solids, glasses, elastomers, gels, melts, and solutions. Basic phenomena are of interest in accordance with the applications of polymers in technologies, such as optoelectronics, photovoltaic, coatings, composites, medicine, food and pharmacy and tissue engineering.