Sustainable synthesis of bio‐based hyperbranched ester and its application for preparing soft polyvinyl chloride materials. Issue 3 (30th December 2018)

• Record Type: Journal Article
• Authors: Tong, Hanqing; Hai, Jinping
• Is Part Of: Polymer international. Volume 68:Issue 3(2019)
• Page Start: 456
• Page End: 463
• Publication Date: 2018-12-30
• Subjects: hyperbranched ester -- polyvinyl chloride -- plasticizer -- DMA -- solvent resistant extraction; Plastics -- Periodicals; Polymers -- Periodicals; Polymerization -- Periodicals; 547.7
• DOI: 10.1002/pi.5730
• Languages: English
• ISSNs: 0959-8103

Abstract

Abstract: In this study, bio‐based hyperbranched ester was synthesized from castor oil. The chemical structure of the bio‐based hyperbranched ester obtained was characterized with Fourier transform infrared and 1 H NMR spectra. Soft polyvinyl chloride (PVC) materials were prepared via thermoplastic blending at 160 °C using bio‐based hyperbranched ester as plasticizer. The performances including the thermal stability, glass transition temperature ( T g ), crystallinity, tensile properties, solvent extraction resistance and volatility resistance of soft PVC materials incorporating bio‐based hyperbranched ester were investigated and compared with the traditional plasticizer dioctyl phthalate (DOP). The results showed that bio‐based hyperbranched ester enhanced the thermal stability of the PVC materials. The T g of PVC incorporating bio‐based hyperbranched ester was 23 °C, lower than that of PVC/DOP materials at 28 °C. Bio‐based hyperbranched ester showed a better plasticizing effect, solvent extraction resistance and volatility resistance than DOP. The plasticizing mechanism is also discussed. © 2018 Society of Chemical Industry Abstract : We synthesized a kind of bio‐based hyperbranched ester using castor oil as raw material. Soft polyvinyl chloride (PVC) materials were prepared via thermoplastic blending using bio‐based hyperbranched ester as plasticizer. The soft PVC materials obtained showed improved thermal stability and mechanical properties and better solvent extraction resistance and volatility resistance than dioctyl phthalate.