Statistical distribution of adhesion strength developed at self-healed symmetric interfaces of glassy monodisperse polystyrene

Abstract

ABSTRACTThe distribution of the lap-shear strength developed during the contact of the bulk samples of amorphous entangled monodisperse polystyrene (PS) at healing temperatures below the bulk glass transition temperature by 13–33 K has been analyzed by using a Weibull statistical model. The Weibull modulus and the scale parameter have been estimated for two symmetric PS–PS interfaces with different molecular weights of 105 and 106 g/mol and compared with those reported recently for the interfaces of amorphous polydisperse polymers.