Preparation of IPNs SBS/PBMA-b-PMA and Effect of Compatibility with PVC
Interpenetrating polymer networks (IPNs) Poly(styrene-butadiene-styrene)/Poly(n-butyl methacrylate-b-methyl acrylate) (SBS/PBMA-b-PMA) was prepared by atom transfer radical polymerization (ATRP) and characterized by FT-IR, 1H NMR and TEM. The TEM photos illustrated that SBS/PBMA-b-PMA formed an obvious core-shell structure, with cross-linked SBS/PBMA core and linear PMA shell. The compatibility of IPNs with PVC was studied using SEM and DSC instruments. The mixed polymers displayed one Tg (Tg=79.4°C, ΔTg=32.5°C) and showed good compatibility. The SEM fracture surface morphologies displayed partial feature of ductile fracture different form neat PVC.
Jun Hu and Qi Luo
Z. C. Wang et al., "Preparation of IPNs SBS/PBMA-b-PMA and Effect of Compatibility with PVC", Advanced Materials Research, Vol. 320, pp. 97-102, 2011