## 1 Introduction  
Plastic waste is a severe problem for the global economy. Municipal solid waste contains more than 10% synthetic polymers [1; 2; 3]. Over time, this will continue to increase as an environmental problem as societal demand continues to increase for polymers. One approach to alleviating this oncoming environmental concern is to develop polymers for multiple uses, i.e., recover and repurpose. Therefore, polymers synthesized with end-of-life considerations that allow for the recovery and reprocessing of the material are of significant interest. Polymers designed for recovery and reprocessing should be easy and cost-effective to synthesize. Dies-Adler (DA) chemistry is a powerful tool for studying the recovery and reprocessing of materials. DA reaction is a [4 + 2] cycloaddition reaction between an electron-rich diene and an electron-poor dienophile, which forms a DA adduct without any catalyst. It is a thermally reversible reaction that can be applied to various polymers [4; 5; 6; 7; 8]. It has been extensively studied due to the relatively fast kinetics and mild reaction conditions [8; 9; 10; 11]. The crosslinking of polymers can be achieved by reacting polymers functionalized with furan (diene) and maleimide (dienophile) moieties. Moreover, its retro-DA reaction takes place at relatively low temperatures, which is the decrosslinking process. This, therefore, opens up exciting applications, such as recyclable networks and self-healing materials using functional polymers containing furans and maleimide. Polymer networks, polymer gels, and dendrimers have been prepared by reacting furan and maleimide functionalized polymers. The first report on this approach to preparing polymeric materials was by [PERSON] and [PERSON] [12]. They used the Friedel-Crafts alkylation to functionalize polystyrene with a maleimide functional group and crosslinked the polystyrene using a bifunctional furan structure to create self-healing materials. A decade later, [PERSON] and [PERSON] used this idea by mixing polystyrene functionalized by maleimide with di-furfurfuryl adipate [13]. Several groups have used furan as a diene in Diels-Alder reactions [14; 15; 16; 17]. [PERSON] et al. and [PERSON] et al. have reported using a thermo-reversible Diels-Alder reaction to regulate the crosslinking of micelles [14; 15]. [PERSON] et al. recently reported the formation of novel thermo-resettable thermosetting polymeric materials of furyl-modified copolymers (FMPs) and BMI using DA reactions [18]. Furthermore, [PERSON] et al. used DA reactions for block copolymers that contain pendant triphenylamine [17]. The crosslinked network formed at 50 \({}^{\circ}\)C, which was confirmed by the DSC studies, which showed an increase in Tg, and for the decrosslinking reaction, a retro-Diels-Alder peak was observed at 149 \({}^{\circ}\)C in the DSC thermogram. [PERSON] et al. reported the formation of the thermo-reversible crosslinked network via the Diels-Alder (DA) reaction of copolymers of 2-vinylfuran and styrene (S-co-2 VFs) with BMI [19]. The temperature range for crosslinking and decrosslinking of S-co-2 VFs with BMI via DA and r-DA reactions was between 50 \({}^{\circ}\)C and 150 \({}^{\circ}\)C. Recently, [PERSON] et al. studied the kinetics of the forward Diels-Alder reaction between furfuryll-terminated polybutadiene (FTPB) and N, N0-1,3-phenylenediamineimide (PDMI) by UV-Vis spectroscopy [20]. The reaction kinetics of FTPB-PDMI was measured by the change in the peak that appears at 310 nm because of the conjugated C=C-C=O moiety. The kinetics were studied at different temperatures, and it was found that the reaction rate increased with temperature. Thermoplastic elastomers (TPEs) are an important class of materials and can be found in various high-value applications, such as luxurious footwear, catheters, tires, etc. They show rubber and plastic-like properties at room temperature due to their two glass transition temperatures, one higher than room temperature and another below room temperature.