TG/DSC/FTIR study of porous copolymeric beads based on the dimethacrylate derivative of m-xylene

Rogulska, Magdalena; Gawdzik, Barbara; Maciejewska, Małgorzata

doi:10.1007/s10973-019-09143-2

Cited by 5 publications

(1 citation statement)

References 27 publications

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“…For this purpose, both aliphatic and aromatic multifunctional monomers, can be successfully employed. The use of bifunctional glycidyl methacrylate (GMA) with a tetrafunctional cross-linking monomer, i.e., ethylene glycol dimethacrylate (EGDMA) [37,48,49] as well as bifunctional 4-vinylpyridine [50] or GMA [38] with hexafunctional trimethylolpropane trimethacrylate as a cross-linking agent resulted in porous microspheres resistant to about 200 • C. The improvement in thermal stability was obtained by replacing the aliphatic cross-linker, i.e., EGDMA with the aromatic one, i.e., di(methacryloyloxymethyl)naphthalene [51] or by using two tetrafunctional monomers, such as DVB and (4,6-dimethyl-1,3-phenylene)dimethylene bis(2-methylprop-2-enoate) [52] or DVB and dimethacrylate derivatives of naphthalene and diphenylmethanone [43].…”

Section: Introductionmentioning

confidence: 99%

Regular Polymeric Microspheres with Highly Developed Internal Structure and Remarkable Thermal Stability

2021

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In this study, the synthesis and characterization of permanently porous polymeric microspheres was presented. The microspheres were obtained via suspension polymerization using diverse functional monomers, such as 4,4′-bis(methacryloyloxymethylphenyl)sulphone, 1,4-bis(methacryloyloxymethyl)benzene, 4,4′-bis(methacryloyloxymethylphenyl)methane, N-vinylpyrrolidone, ethylene glycol dimethacrylate, and divinylbenzene as a co-monomer. As porogenic solvents, toluene and chlorobenzene were applied. The main aim of the research was to synthesize polymers having a highly developed internal structure and a good thermal stability. The synthesized materials were characterized by ATR-FTIR, scanning electron microscopy, a size distribution analysis, a low-temperature nitrogen adsorption–desorption method, differential scanning calorimetry, and thermogravimetry coupled with FTIR and inverse gas chromatography. It was found that, depending on the functional monomer, regular microspheres with a specific surface area in the range of 418–746 m2/g can be successfully synthesized. Moreover, all the synthesized copolymers showed a good thermal stability. In helium, they exhibited 5% mass losses at temperatures over 300 °C, whereas in air these values were only slightly lower. In addition, the presence of miscellaneous functional groups promoted diverse kinds of interactions. Therefore, the microspheres can be possibly use in many adsorption techniques including high temperature processes.

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Section: Introductionmentioning

confidence: 99%

Regular Polymeric Microspheres with Highly Developed Internal Structure and Remarkable Thermal Stability

2021

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Synthesis and characterization of porous copolymers of 2‐hydroxyethyl methacrylate with ethylene glycol dimethacrylate

Maciejewska

Rogulska

Józwicki

et al. 2021

Polymers for Advanced Techs

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The present study describes the synthesis and characterization of porous copolymers of 2-hydroxyethyl methacrylate (HEMA) cross-linked ethylene glycol dimethacrylate (EGDMA). They were synthesized in the regular microspheric shape via suspensionemulsion polymerization using toluene as a porogen. Different molar ratios of monomers (1:3, 1:2, 1:1, 2:1, 3:1) were applied in the syntheses. It was interesting to check if any of the above mentioned ratios can provide materials with an advantageous proportion of hydroxyl groups to the value of specific surface area. Additionally, we aimed into polymers with a good thermal stability. The obtained materials were characterized by elemental analysis, FTIR-ATR spectroscopy, hydroxyl value (HV), lowtemperature nitrogen adsorption-desorption method, differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA). It was found that by tuning the molar ratio of functional monomer to the cross-linker, it is possible to obtain copolymers with developed internal structure and a high HV. The optimal results were achieved for HEMA-co-EGDMA_1:2 (specific surface area: 111 m 2 /g, HV: 117 mg KOH/g). Furthermore, all the synthesized copolymers show a good thermal stability both in helium and air atmospheres. Their temperatures of 5% mass losses are over 230 C. The presented data indicate that the synthesized microspheres can be potentially use in various adsorption techniques including high temperature processes.

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Effect of N,N′-dimethylformamide solvent on structure and thermal properties of lanthanide(III) complexes with flexible biphenyl-4,4′-dioxydiacetic acid

Głuchowska

Łyszczek

Jusza

et al. 2021

J Therm Anal Calorim

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TG/DSC/FTIR study of porous copolymeric beads based on the dimethacrylate derivative of m-xylene

Cited by 5 publications

References 27 publications

Regular Polymeric Microspheres with Highly Developed Internal Structure and Remarkable Thermal Stability

Regular Polymeric Microspheres with Highly Developed Internal Structure and Remarkable Thermal Stability

Synthesis and characterization of porous copolymers of 2‐hydroxyethyl methacrylate with ethylene glycol dimethacrylate

Effect of N,N′-dimethylformamide solvent on structure and thermal properties of lanthanide(III) complexes with flexible biphenyl-4,4′-dioxydiacetic acid

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