Thermal properties of TRIM–GMA copolymers with pendant amine groups

Maciejewska, Małgorzata

doi:10.1007/s10973-016-5617-1

Cited by 21 publications

(18 citation statements)

References 25 publications

(26 reference statements)

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“…Thermal decomposition of the investigated samples proceeded by depolymerization and ester decomposition and involved three degradation steps characteristic for poly(methacrylates) [33][34][35][36]. The first step observed in the range 200-300 o C with Tmax1 at 250-280 o C could be associated with the decomposition initiated at weak bonds in backbone pendant groups (epoxy groups).…”

Section: Figure 8 Thermogravimetric Analysis Of Pgmt Mpgmt and Mpgmmentioning

confidence: 99%

Characterization of glycidyl methacrylate based magnetic nanocomposites

Marković¹,

Spasojević²,

Dapčević³

et al. 2019

Hem Ind

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Magnetic and non-magnetic macroporous crosslinked copolymers of glycidyl methacrylate and trimethylolpropane trimethacrylate were prepared by suspension copolymerization and functionalized with diethylenetriamine. The samples were characterized by mercury porosimetry, scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS), Fourier transform infrared spectroscopy analysis (FTIR-ATR), thermogravimetric analysis (TGA), X-ray diffractometry (XRD), atomic force microscopy (AFM), transmission electron microscopy (TEM) and SQUID magnetometry. The FTIR-ATR analysis of synthesized magnetic nanocomposites confirmed the presence of magnetite and successful aminofunctionalization. Non-functionalized and amino-functionalized nanocomposites exhibited superparamagnetic behavior at 300 K, with a saturation magnetization of 5.0 emu/g and 2.9 emu/g, respectively. TEM analysis of the magnetic nanocomposite has shown that magnetic nanoparticles were homogeneously dispersed in the polymer matrix. It was demonstrated that incorporation of magnetic nanoparticles enhanced the thermal stability of the magnetic nanocomposite in comparison to the initial non-magnetic macroporous copolymer.

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Section: Figure 8 Thermogravimetric Analysis Of Pgmt Mpgmt and Mpgmmentioning

confidence: 99%

Characterization of glycidyl methacrylate based magnetic nanocomposites

Marković¹,

Spasojević²,

Dapčević³

et al. 2019

Hem Ind

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“…The first one with the maximum at * 60°C is connected with the evaporation of water molecules absorbed in the microsphere pores (see FTIR spectra in Figs. 7 and 8) [17][18][19]. The next one with the maximum at 183°C for DMN-DVB-C8 and 249°C for DMN-DVB-C18 is mainly associated with the decomposition of the aliphatic chains attached to the microspheres.…”

Section: Resultsmentioning

confidence: 95%

“…Referring to the DSC curve, it should be noted that besides the endothermic peaks, the exothermic one with the maximum at 178°C is also visible, which is associated with the post-crosslinking. This is a typical reaction of highly crosslinked polymers that possess unreacted C=C double bonds in their structure [9,16,17]. The course of DMN-DVB-C8 and DMN-DVB-C18 materials decomposition differs significantly from that of the parent copolymer.…”

Section: Resultsmentioning

confidence: 99%

Studies of thermal properties of di(methacryloyloxymethyl)naphthalene–divinylbenzene (DMN–DVB) copolymer and its alkyl-bonded derivatives

Gawdzik

Rogulska

Grochowicz

et al. 2019

J Therm Anal Calorim

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This paper presents the thermal properties of highly crosslinked di(methacryloyloxymethyl)naphthalene-divinylbenzene (DMN-DVB) copolymeric microspheres containing polar groups in the structure and their alkyl-bonded derivatives. C 8 and C 18 alkyl chains were introduced into the aromatic rings of the DMN-DVB porous copolymer by means of the Friedel-Crafts reaction. As a source of C 8 and C 18 alkyl chains, octyl and octadecyl chlorides were used. It was necessary to check whether the introduction of alkyl chains into the structure of polymeric packing had an impact on its thermal properties. The studies were carried out by thermogravimetry coupled online with FTIR spectroscopy and differential scanning calorimetry in inert atmosphere (helium). It was stated that the modified materials showed 20 and 50% mass losses at higher temperatures than the non-modified one while 1% mass loss was observed at lower temperatures. Moreover, an analysis of volatile decomposition products was performed.

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“…Its decomposition takes place in the range of 350 to 490 • C. The flat and broad exothermic peak (120-300 • C) is the effect of the post-curing process. This process is characteristic for highly crosslinked polymers synthesized via suspension polymerization [24,25]. The shape and low energetic effect (27 J/g) of the peak prove that only an insignificant number of vinyl groups did not react during the polymerization.…”

Section: The Morphology Of the Research Materials And Their Chemical mentioning

confidence: 82%

Sorption Properties of Polydivinylbenzene Polymers Towards Phenolic Compounds and Pharmaceuticals

Sobiesiak

Grochowicz

Tomasik

2019

Colloids and Interfaces

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Highly cross-linked polymers are commonly used in purification and separation techniques because of their many useful features. In order to better adjust their porosity to adsorption of specific compounds, methods like surface functionalization or imprinting are used. In this work, a series of highly cross-linked polydivinylbenzenes (pDVB) were prepared using a suspension method. Toluene was applied as a pore-forming diluent. Some part of toluene (1 mL) was replaced with phenol (F), 2,4,6-trichlorophenol (T) or their mixture (M) to prepare polymers with porosity more suitable for phenols sorption. Another approach was an introduction of sulfone groups onto the polymer surface (pDVB-SO3H). The physicochemical characteristics of the synthetized adsorbents included CHN, FTIR, DSC and porosimetric analyses. Afterwards, to evaluate sorption properties of the prepared adsorbents towards phenols, ibuprofen and salicylic acid the solid phase extraction (SPE) experiments were performed. The polymers had the specific surface areas of about 440–560 m2/g created mainly by mesopores with widths ca. 3.75 and 4.75–7.15 nm. Materials obtained with the addition of porosity modifiers (phenol, trichlorophenol, mixture) had more uniform porous structure and their sorption capacity toward phenols increased ca. 5%. Similar sorption capacities were obtained for ibuprofen. Salicylic acid had low affinity to the surface of the tested polymers.

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Thermal properties of TRIM–GMA copolymers with pendant amine groups

Cited by 21 publications

References 25 publications

Characterization of glycidyl methacrylate based magnetic nanocomposites

Characterization of glycidyl methacrylate based magnetic nanocomposites

Studies of thermal properties of di(methacryloyloxymethyl)naphthalene–divinylbenzene (DMN–DVB) copolymer and its alkyl-bonded derivatives

Sorption Properties of Polydivinylbenzene Polymers Towards Phenolic Compounds and Pharmaceuticals

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