Surface functionalization of polypropylene‐bearing isocyanate groups in solid state and their cyclotrimerization with diisocyanates

Sun, Menghan; Zhang, Xianming; Li, Feng

doi:10.1002/app.42186

Cited by 5 publications

(4 citation statements)

References 52 publications

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“…Additionally, while the melt state is commonly used for polymer functionalization, it can cause considerable PP degradation, as well as poor thermomechanical properties. Alternatively, the solid-state phase reaction can be adopted at room temperature to overcome these issues [ 38 ].…”

Section: Methodsmentioning

confidence: 99%

New Synthesis Routes toward Improvement of Natural Filler/Synthetic Polymer Interfacial Crosslinking

et al. 2022

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Among the critical issues dictating bio-composite performance is the interfacial bonding between the natural fibers and polymer matrix. In this regard, this article presents new synthesis routes comprising the treatment and functionalization of both date palm powder (DPP) filler and a polypropylene (PP) matrix to enhance filler–polymer adhesion in the newly developed bio-composites. Specifically, four bio-composite forms are considered: untreated DPP filled PP (DPP-UT/PP), treated DPP filled PP (DPP-T/PP), treated DPP filled functionalized PP using 2-isocyanatoethyl methacrylate (DPP-T/PP-g-IEM), and treated and functionalized DPP using 4-toluenesulfonyl chloride filled functionalized PP using 2-acrylamide ((DPP-T)-g-TsCl/PP-g-AcAm). The functional groups created on the surface of synthesized PP-g-IEM react with activated hydroxyl groups attached to the filler, resulting in chemical crosslinking between both components. Similarly, the reaction of TsCl with NH2 chemical groups residing on the mating surfaces of the filler and polymer generates an amide bond in the interface region. Fourier transform infrared spectroscopy (FTIR) is used to confirm the successful coupling between the filler and polypropylene matrix after applying the treatment and functionalization schemes. Owing to the introduced crosslinking, the DPP-T/PP-g-IEM bio-composite exhibits the best mechanical properties as compared to the neat polymer, unfunctionalized polymer-based bio-composite, and (DPP-T)-g-TsCl/PP-g-AcAm counterpart. The applied compatibilizers assist in reducing the water uptake of the manufactured bio-composites, increasing their durability.

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Section: Methodsmentioning

confidence: 99%

New Synthesis Routes toward Improvement of Natural Filler/Synthetic Polymer Interfacial Crosslinking

et al. 2022

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“…Schematic of the chemical methods for natural filler and polymer functionalization 133,149–164 . [Color figure can be viewed at wileyonlinelibrary.com]…”

Section: Framework Of High‐performance Eco‐composites Productionmentioning

confidence: 99%

Progress and challenges in sustainability, compatibility, and production of eco‐composites: A state‐of‐art review

Nassar

Alzebdeh

Pervez

et al. 2021

J of Applied Polymer Sci

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Owing to economic and environmental benefits, new generations of materials/commodities follow “from waste to wealth” strategy. Recently, there has been a huge upsurge in research on the development of eco‐composites using recycled plastic polymers and agro‐residues because the eco‐composites satisfy the stringent environment regulations and are cost‐effective. Herein, we present a detailed review on the potential use of several types of natural fillers as an efficient reinforcement for recycled plastic polymers. In particular, the characterization of different categories of eco‐composites according to their morphological, physical, thermal, and mechanical properties is extensively reviewed and their results are analyzed, compared, and highlighted. Furthermore, a framework to produce functional eco‐composites, which includes functionalization of ingredients, critical issues on microstructural parameters, processing, and fabrication methods, is outlined and supported with sufficient data from the literature. Finally, the review outlines the emerging challenges and future prospects of eco‐composites to be addressed by interested researchers to bridge the gap between research and commercialization of such a class of material. Overall, the acquired knowledge will guide researchers, scientists, and manufacturers to plan, select, and develop various forms of eco‐composites with enhanced properties and optimized production processes.

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“…The system trialkylborane/O 2 was also used for modification of polypropylene (PP) surface . The formed alkoxy and alkyl radicals abstracted hydrogen atoms from PP surface and generated PP radical, that initiated new polymer chains and established the grafting process.…”

Section: Introductionmentioning

confidence: 99%

Alkylboranes in Conventional and Controlled Radical Polymerization

Pan

2019

Journal of Polymer Science

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Utilizations of alkylboranes reagents in radical polymerization are summarized in this minireview. Alkylboranes act as conventional radical initiators or radical chain‐transfer agents in free‐radical polymerization and controlled radical polymerization. This review discusses various polymerizations operating through different alkylborane reagents with their accompanying mechanisms. The aim of this minireview is to present the state of art of alkylboranes in radical polymerization and to provide the future aspects of this direction. © 2019 Wiley Periodicals, Inc. J. Polym. Sci. 2020, 58, 14–19

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Surface functionalization of polypropylene‐bearing isocyanate groups in solid state and their cyclotrimerization with diisocyanates

Cited by 5 publications

References 52 publications

New Synthesis Routes toward Improvement of Natural Filler/Synthetic Polymer Interfacial Crosslinking

New Synthesis Routes toward Improvement of Natural Filler/Synthetic Polymer Interfacial Crosslinking

Progress and challenges in sustainability, compatibility, and production of eco‐composites: A state‐of‐art review

Alkylboranes in Conventional and Controlled Radical Polymerization

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