Heat-resistant Poly(methyl methacrylate) Modified by Biomass Syringaldehyde Derivative: Preparation, Thermostability and Transparency
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Poly(methyl methacrylate) (PMMA) has found a lot of practical uses, however, how to efficiently and cost-effectively improve its relatively low thermal properties remains as an intractable academic challenge. This article reports a novel strategy for improving heat-resistance of PMMA by using biomass syringaldehyde. Syringaldehyde methacrylate (SMA) was first synthesized and then used as comonomer to copolymerize with methyl methacrylate (MMA) through bulk polymerization and solution polymerization. The copolymers can be obtained in high yield and demonstrate remarkably improved heat-resistance according to differential scanning calorimetry (DSC), thermal gravimetric analysis (TGA) and derivative thermogravimetry analyses (DTG). Moreover, the modified PMMA still maintains good light transmittance in visible range. The study provides a new alternative for modifying PMMA, and the modified PMMA may find new applications as heat-resistant polymeric material which cannot routinely achieved by PMMA itself. In addition, SMA as a new type of green heat-resistant modifier derived from renewable biomass syringaldehyde may have potential applications in heat-resistant modification of materials.
KeywordsPMMA Thermostability Biomass-based material Polymer material Syringaldehyde
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This work was supported by the National Natural Science Foundation of China (21774009).