An excellent ozone-resistant polymethylvinylsiloxane coating on natural rubber by thiol-ene click chemistry

Abstract

Abstract. Natural rubber (NR) as renewable resource is a kind of cheap and versatile elastomer. A disadvantage of NR is that the ozone resistance is not good, which needs to be improved for its wider application. In this study, polymethylvinylsiloxane (PMVS) coating on natural rubber (NR) was realized for the first time by using thiol-ene click reaction under UV irradiation, simultaniously realizing the fast crosslinking of PMVS layer and the covalent crosslinking between PMVS layer and NR layer. As a result, a good interphase adhesion between PMVS coating and NR was obtained. The coating of the crosslinked PMVS layer on NR resulted in an obvious increase in the ozone resistance of NR. Our study provides a new and high efficient strategy to prepare elastomer materials with good ozone resistance.

Enzymatic and Chemical Approaches for Post‐Polymerization Modifications of Diene Rubbers: Current state and Perspectives

“…Moreover, the thiol-ene reactions are frequently employed to introduce "clickable" functional groups in the polymer backbone. Rubber functionalization through thiol-ene click reactions also include modulation of the polymer hydrophobicity by introduction of polar groups, [142][143][144] introduction of inorganic materials, [63,145] improvement of the dispersion of nanomaterials, [137,146,147] polymer coating, [148] introduction of biomolecules, [149][150][151][152] synthesis of patterned microstructures, [153,154] linking of ionic liquids, [155] and introduction of dynamic hydrogen bonds for self-healing properties. [143,[156][157][158] Some biological applications include preparation of antibacterial materials, [159,160] surface preparation to protein adsorption [161] and synthesis of chiral materials by introduction of chiral amino acids.…”

New Approach on the Modification of Liquid Natural Rubber Production using Microwave Technique

“…Over the last few decades, depolymerization of natural rubber (NR) to liquid natural rubber (LNR) has been developed and studied extensively. NR is known as a renewable green resource and has attracted more attention due to environmental protection and resource-saving requirements (Ning et al 2015). Although NR possesses many advantages, the presence of unsaturated bonds makes NR easy to degrade when exposes to sunlight, ozone, air, and especially, at elevated temperatures (Wongthong et al 2013).…”

Hydrogenation of Liquid Natural Rubber Using 2,4,6-Trimethylbenzenesulfonylhydrazide : Optimisation of Reaction Parameters via Response Surface Methodology

“…Nowadays, NR is being recognized as a renewable resource and this has attracted more attention to itself because of the requirement of environmental protection and resource saving. 2 However, the NR possessed low resistance to heat, ozone and chemical reagents of NR because of its unsaturated chain structure. Through the production of highly saturated NR, these drawbacks can be improved.…”