Synthesis of a Novel Bio-Oil-Based Hyperbranched Ester Plasticizer and Its Effects on Poly(vinyl chloride) Soft Films

Jie Chen; Xiaoan Nie; Jianchun Jiang

doi:10.1021/acsomega.0c00119

Synthesis of a Novel Bio-Oil-Based Hyperbranched Ester Plasticizer and Its Effects on Poly(vinyl chloride) Soft Films

ACS Omega. 2020 Mar 2;5(10):5480-5486. doi: 10.1021/acsomega.0c00119. eCollection 2020 Mar 17.

Authors

Jie Chen^{1

2}, Xiaoan Nie¹, Jianchun Jiang¹

Affiliations

¹ Institute of Chemical Industry of Forestry Products, National Engineering Laboratory for Biomass Chemical Utilization, and Key Laboratory of Biomass Energy and Material, Chinese Academy of Forestry, Nanjing, Jiangsu 210042, China.
² Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, Jiangsu 210042, China.

Abstract

A novel hyperbranched ester plasticizer (SOHE) was synthesized from soybean oil. FTIR, ¹H NMR, and ¹³C NMR spectroscopies were used to analyze the chemical structure of SOHE. SOHE was added into poly(vinyl chloride) (PVC). Thermal, mechanical, and dynamic mechanical properties of PVC samples were studied with thermal gravimetric analysis, dynamic mechanical analysis, and tensile tests. The results of SOHE substitution of petroleum-based dioctyl phthalate (DOP) in soft PVC samples were studied. The results indicated that PVC blends mixed with the obtained plasticizer showed higher thermal stability and flexibility. When DOP was completely replaced with SOHE, the T _i, T ₁₀, and T ₅₀ of the films were raised to 267.5, 275.3, and 338.0 °C, respectively. The plasticizing mechanism was also investigated. The volatility resistance and extraction were studied, which results indicated that the migration stability of PVC samples was significantly enhanced with the increasing amount of SOHE.