Curcumin-derived green plasticizers for poly(vinyl) chloride

Abstract

The efficient synthesis of curcumin-diesters, which serve as green plasticizers for poly (vinyl) chloride (PVC), is reported. The plasticizers lower the glass transition temperature of PVC, and their cytotoxicity and leaching-resistance properties are significantly better than commercially used phthalate plasticizers which have several limitations.

Recent Developments of Biobased Plasticizers and Their Effect on Mechanical and Thermal Properties of Poly(vinyl chloride): A Review

“…The curcumin-diester based green plasticizer was synthesized from curcumin and stearic acid by the esterification reaction in the presence of dimethylaminopyridine (DMAP) base as shown in Figure 17. The developed plasticizers exhibited lower cytotoxicity and better leaching resistance compared to the traditional dibutyl phthalate (DBP) plasticizers reported by Saltos et al 100 Howell et al 101 also synthesized tartaric acid based plasticizers revealing a better compatibility with PVC, low migration, good plasticization effect, and no effect on the thermal stability of the polymer. These materials demonstrated better properties as substitutes for phthalate plasticizers.…”

“…The curcumin-diester based green plasticizer was synthesized from curcumin and stearic acid by the esterification reaction in the presence of dimethylaminopyridine (DMAP) base as shown in Figure . The developed plasticizers exhibited lower cytotoxicity and better leaching resistance compared to the traditional dibutyl phthalate (DBP) plasticizers reported by Saltos et al…”

Structure Design, Performance Simulation and Plasticizing Properties of Bio-Based Copolyesters Plasticizer on PVC

“…Plasticizer is one of the largest additives in terms of production and consumption [13]. It plays an indispensable role in providing high-quality plastic products for human beings [14]. For a long time, plasticizers have been mainly based on phthalate products.…”

Highly Stretchable, Ultratough, and Multifunctional Poly(vinyl chloride)-Based Plastics via a Green, Star-Shaped Macromolecular Additive

“…Among the numerous phthalate-free, environment-friendly plasticizers being developed, the macromolecular plasticizers − are superior compared to small-molecular analogues ,− because of the low molecular mobility of polymers. Meanwhile, multisite concerted interactions between PVC and plasticizers can overcome the leaching issue and maintain long-term mechanical performance. , With excellent biodegradability, high miscibility with PVC, good chain flexibility, and potential synthesis from a biosource, poly­(ε-caprolactone) (PCL)-based polymers are especially attractive as “green” plasticizers for PVC. ,− In the polymer field, rational structure design of polymeric materials with different topologies is always critical toward their optimal properties and enhanced performance following the “structure–property” relationship. ,, In this aspect, the PCL plasticizers with branched structures can increase the mobility of PVC systems in a more efficient manner than the linear ones due to their large number of chain end, high free volume, and increased mobility. ,,, For instance, the highly branched copolymer obtained from one-pot copolymerization of CL and glycidol affords the PVC blends (60 wt % plasticizer relative to PVC) with high extensibility (∼310 to 390%) and decent tensile strength (∼12 to 16 MPa) .…”