Journal
JOURNAL OF VINYL & ADDITIVE TECHNOLOGY
Volume 26, Issue 1, Pages 35-42Publisher
WILEY
DOI: 10.1002/vnl.21713
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Funding
- Bingtuan Innovation Team in Key Areas [2015BD003]
- National Natural Science Foundation of China [21464012]
- Program for Changjiang Scholars and Innovative Research Team in University [KF201703]
- Opening Project of The Key Laboratory for Green Processing of Chemical Engineering of Xinjiang
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A series of multiarm structure hyperbranched polyester-b-poly(epsilon-caprolactone) (HEPCLs) with different lengths of poly(epsilon-caprolactone) (PCL) segments (s = 3, 6, 7, 8) were synthesized. Hyperbranched polyester (HE) was synthesized from glycidol and succinic anhydride and used as a macromolecular polymerization initiator for epsilon-caprolactone. The HEPCLs were used as polyvinyl chloride (PVC) plasticizers and the mechanical properties, thermal properties, morphology, and migration stabilities of PVC films were explored. The plasticizing efficiency increased with the increase in PCL segments, and the plasticizing efficiency of HEPCL8 exceeded that of dioctyl phthalate. Scanning electron microscopy and solid-state H-1 NMR showed that the HEPCLs possess better compatibility with PVC than HE. Moreover, HEPCLs exhibited excellent migration stability even at very harsh condition, indicating that HEPCLs can be used as no-migration PVC plasticizers in medical products, children's toys, and food packaging. J. VINYL ADDIT. TECHNOL., 26:35-42, 2020. (c) 2019 Society of Plastics Engineers
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