Abstract
AbstractSummary: Thick bulk films of linear amorphous polymers with different chain architecture and molecular weight were brought into contact with themselves in a lap‐shear joint geometry at bonding temperatures (T) below the glass transition temperatures of their bulk (T), at a small contact pressure, in order to form autoadhesive joints. As‐bonded joints were shear‐fractured in tension at ambient temperature, and their lap‐shear strength was measured as a function of T, bonding time and molecular weight. The kinetics of the process of the development of the lap‐shear strength at T < T was investigated, and the molecular mechanisms governing this process were discussed. The quasi‐equilibrium surface glass transition temperatures of the investigated polymers were estimated and compared with the corresponding values of T.
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