“…133 Some commonly used synthetic polymers are PVA, 134 polyvinyl acetate (PVAc), 81 polyimide (PI), 91 polyacrylates ( e.g. , poly(methyl methacrylate) (PMMA), Eupergit ® -C), 135,136 polyamide ( e.g. nylon 6), 137 polyacrylonitrile (PAN), 138 polyaniline (PANi), 139 poly(ethylene glycol) (PEG), 140 and poly(lactic- co -glycolic acid) (PLGA).…”