Nanobrush Structured Oligo(?-caprolactone) as a Novel Plasticizer for the Manufacture of Eco-friendly Polyvinyl chloride)

摘要

Nanobrush structured oligo(?-caprolactone) (nb-OCL), which has excellent mobility and many carbonyl groups interacted with poly(vinyl chloride) (PVC) chain, was synthesized as a alternative plasticizer for endocrine-disrupting di(2-ethylhexyl) phthalate (DEHP) which migrated from PVC. The flexible PVC, which was plasticized by nb-OCL using solution blending, was evaluated plasticizer efficiencies by the lowering of glass transition temperature and the enhancement in percentage elongation at break. In addition, plasticizer migration tests were carried out three different conditions which are contact with a liquid media, other solid substrates, and atmosphere. Through this investigation, we found that PVC/nb-OCL had flexibility as high as PVC/DEHP, and that there was no plasticizer migration even under harsh condition at the extractability and exudability tests, while DEHP was migrated from PVC. Finally, nb-OCL can be used as a novel plasticizer for eco-friendly flexible PVC.