In the present work, a phenomenological model to describe poly(vinyl chloride) polymerization in a continuous oscillatory baffled reactor is presented for the first time. The model robustness is evaluated through a set of perturbation tests. Moreover, the diffusion effects on the polymerization rates affect the temperature gradients along the reactor length.

Effects of sulfonation degree, ionic liquid content, and temperature on the structures of the sulfonated poly(ether ether ketone) (SPEEK)-1-butyl-3-methylimidazolium trifluoromethanesulfonate [BMIm][OTf] composite membrane are investigated by DPD and MD simulations for fuel-cell applications. Increasing the degree of sulfonation, ionic liquid content, or temperature, interconnected ionic liquid channels can be formed within the composite membranes.

Interfacial thermal resistance (ITR) in polymer–polymer interfaces is experimentally measured in this paper by the multi-layered bulk sample approach. Based on numerical simulation and experimental verification, new techniques of layer-overlapping samples are developed. ITR test shows a linear increase with the increase of layer number, and specific ITR for PP-HDPE and PLA-HDPE are reported.

The averages for the cross-linking of distributions with different functional groups were studied. One application is the step growth polymerization of type A₂ + B₂ where a branching agent is introduced in the form of a monomer A_f with 3 or more functional groups instead of 2. The functionality of the branching agent f = 3, 4‥7 has practically no effect on the weight average but on the z-average; the ratio DP_z/DP_w is linear in the branching density and functionality of the branching agent.