| Abstract
| - Bonding amorphous polystyrene (PS) and poly(2,6-dimethyl 1,4-phenylene oxide) (PPO) hasbeen carried out in a broad range of temperatures and contact times (t), but always below the glasstransition temperature (Tg), in a lap−shear joint geometry. Strength at the symmetric and asymmetricpolymer/polymer interfaces develops with t1/4 and, hence, is diffusion controlled. The development ofstrength at the homopolymer/miscible blend interface below Tg can be simulated from data forhomopolymer/homopolymer interfaces, taking into account the wetting (and “fast diffusion”) and diffusioncontributions to the development of strength.
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