An overview on the recent developments in reactive plasticizers in polymers

Abstract

This review is about the reactive plasticizer. Plasticizers are small molecules with low molecular weight. These compounds typically have an esteric structure. The plasticizers reduce the glass transition temperature, and the viscosity of the polymer also enhances the flexibility and processability of polymer materials. The main problem of these additives is that, over time, they migrate from the polymeric matrix and exude to the surface of polymeric matrix. As a result, the physical and mechanical properties of the polymer are affected. Various strategies, such as increasing molecular weight of plasticizer, selection of oligomeric structure for plasticizer, and adding nanoparticles of minerals, have been investigated to reduce and eliminate migration.An approach that has recently been of great interest to researchers is the use of reactive plasticizers. In this approach, plasticizers covalently bond to the polymeric chains and prevent migration.

Recent Attempts in the Design of Efficient PVC Plasticizers with Reduced Migration

“…Still, there are numerous studies mentioning reactive plasticizers, which are compounds able to attach to PVC chains. Two extensive reviews describing internal plasticizers were written by Bodaghi [ 60 ] and by Ma et al [ 52 ] These compounds are usually based on commonly used plasticizers like DOP [ 61 ] and triethyl citrate [ 62 ]. Bodaghi proposed two main types of reactive plasticizers depending on the type of the reaction of a plasticizer with the polymer chain: nucleophilic substitution reaction; click reaction.…”

Effect of a Natural Processing Aid on the Properties of Acrylonitrile-Butadiene Rubber: Study on Soybean Oil Fatty Acid from Seed Crop

“…Processing aids are one of the major nonvolatile additives in the rubber industry. Typically, a processing aid is added to rubber compounds as a softener to improve the processability (reduced viscosity) and, in particular, to improve the filler dispersion in the case of high filler loading or the other ingredients during rubber processing [ 1 , 2 ].…”

“All-PVC” Flexible Poly(vinyl Chloride): Nonmigratory Star-Poly(vinyl Chloride) as Plasticizers for PVC by RAFT Polymerization

“…Many different approaches to preventing additive or plasticizer migration have been investigated and are summarized in recent reviews. ,− One strategy is to use a polymeric external plasticizer. These typically take the form of a polymer that is miscible with and has a lower glass-transition temperature ( T g ) than PVC.…”