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Multiarm hyperbranched polyester‐b‐Poly(ε‐caprolactone):Plasticization effect and migration resistance for PVC
Journal of Vinyl and Additive Technology ( IF 1.550 ) Pub Date : 2019-05-23 , DOI: 10.1002/vnl.21713
Yanke Li; Erlei Yu; Xiangming Yang; Zhong Wei

A series of multiarm structure hyperbranched polyester‐b‐poly(ε‐caprolactone) (HEPCLs) with different lengths of poly(ε‐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 ε‐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 1H 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. © 2019 Society of Plastics Engineers
更新日期:2020-04-23

 

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