Mechanical Properties of Methyl Methacrylate Copolymers

Abstract

Methyl methacrylate was used as a main monomer in this paper. Firstly poly(methyl methacrylate) (PMMA) was synthesized by bulk polymerization of methyl methacrylate(MMA) in mold. Subsequently MMA was copolymerized with acrylonitrile (AN) and styrene (St) respectively in mold. The as-prepared products were tested by tensile and impact test. The results of test show that with the increase of the AN content in the copolymer, the tensile strength of the copolymer showed a downward trend for the internal defects after rising first for the forming of intermolecular hydrogen bond. The impact strength of the copolymer showed a rising trend for the formation of hydrogen bonds. Meanwhile, with the increase of the St content, the tensile strength of the copolymer showed a rising trend for the introduce of strong rigidity benzene. The impact strength of the copolymer increased first for the rigidity of benzene pendant group and then decreased for the decline accumulation degree of molecular chain.

Synthesis and Characterization of Silicon-Modified Polyurethane Acrylate for UV-Thermal Dual Curing in Three Dimensional Printing

“…The impressive tensile strength and elongation at break properties of MMA can be attributed to its high reactivity and degree of polymerization during UV-curing. Additionally, MMA’s hard monomer nature, akin to the polarity of hard segments in SiBPUA molecules, allows for easy formation of hydrogen bonding, resulting in excellent compatibility when used as a diluent in SiBPUA materials . ACMO and DMAA molecules, containing nitrogen atoms capable of strong hydrogen bonding, contribute to the relatively sizeable tensile strength of polymers when used as diluents.…”

“…monomer nature, akin to the polarity of hard segments in SiBPUA molecules, allows for easy formation of hydrogen bonding, 60 resulting in excellent compatibility when used as a diluent in SiBPUA materials. 61 ACMO and DMAA molecules, containing nitrogen atoms capable of strong hydrogen bonding, contribute to the relatively sizeable tensile strength of polymers when used as diluents. ACMO, with a sixmembered ring and nitrogen and oxygen atoms, exhibits superior mechanical strength in polymerized materials compared to DMAA-SiBPUA and ACMO-SiBPUA.…”

Fabrication of methyl methacrylate-based polymer particles by miniemulsion and combined miniemulsion/emulsion polymerization using an atomization apparatus

“…The interest in the manufacture of MMA-based copolymers arose to overcome the deficiencies of PMMA in terms of thermal resistance (Kim et al 2015;Zhang et al 2015). The literature has proposed a series of polymerization methods for obtaining styrene-methyl methacrylate copolymer (STMMA) (Jalili et al 2011;Vaganova et al 2011;Mehravar et al 2012).…”