Investigation of the thermal properties of glycidyl methacrylate–ethylene glycol dimethacrylate copolymeric microspheres modified by Diels–Alder reaction

• DOI: 10.1007/s10973-017-6785-3
• Publication Date: 2017-11-01T21:53:39Z
• Authors: Marta Grochowicz; Przemysław Pączko...; Barbara Gawdzik
• Keywords: Glycidyl methacrylate; Ethylene glycol dimethacrylate; Thermogravimetry; Maleic anhydride; Thermal Stability; Emulsion polymerization

The study describes the thermal properties of functional microspheres composed glycidyl methacrylate (GMA) and crosslinking agent ethylene glycol dimethacrylate (EGDMA). Copolymeric poly(GMA-co-EGDMA) were prepared via suspension–emulsion polymerization in presence toluene decan-1-ol as porogens. In order to introduce groups, porous network was modified by epoxy ring opening with use sodium cyclopentadienide then Diels–Alder addition maleic anhydride. materials evaluated thermogravimetry differential scanning calorimetry. By TG/FTIR, it observed that new exhibited multi-staged decomposition patterns, different from parent microspheres. synthesized rather high stability inert atmosphere. Their initial temperature determined at 2% mass loss about 210 °C; however, after chemical modification slightly lower. degradation copolymer runs mainly according depolymerization mechanism, while functionalized cyclopentadienyl group anhydride decompose through chain scission mechanism.