of styrene butadiene copolymer sb or sbr polymer on the background from connected macromolecules

atom atomic atoms background badge biology block butadiene chemical chemist chemistry collection component compound concept connected copolymer education elastomer element formula graphic icon illustration information isolated laboratory macromolecular macromolecules medicine model molecular molecule object organic packet plastic polymer research resin rubber sbr science sign structure styrene symbol synthetic technology thermoplastic vector web white