Study of the thermal behaviours of some metal acrylates

Balcerowiak, W.; Béres, J.; Olkowska, J.

doi:10.1007/bf02104088

Cited by 23 publications

(12 citation statements)

References 3 publications

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“…The formation of crack-carbon often takes place when thermal decomposition is performed in a non-oxidizing atmosphere [5][6][7] and sometimes even in air [1].…”

Section: Decomposition Residuesmentioning

confidence: 99%

“…The area of applications of such polymers is very broad and among their characteristic features are chemical resistence and thermal stability. Metal derivatives of polymers containing COOH groups are among the best known.The thermal behaviours of some monovalent and divalent metal acrylates have been reported [1 ]. Monomers containing divalent transition metals may be especially interesting for the preparation of coordination polymers and ionomers.…”

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confidence: 99%

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The thermal decompositions of some transition metal acrylates and polyacrylates

Gronowski

Wojtczak

1983

Journal of Thermal Analysis

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The thermal behaviours of zinc, cobalt, nickel and copper acrylates and their polymers were investigated. It was found that the decompositions of these compounds are complex processes. The main decomposition of the monomer was preceded by thermal polymerization. The thermal effect of this reaction was greater for zinc acrylate than for the other salts. The reaction orders and activation energies of decomposition of the monomers and the polymers were calculated and the differences discussed.In recent years metal-containing monomers and polymers have been subject to increasing interest. This is due to a number of valuable properties shown by coordination polymers and ionomers. The area of applications of such polymers is very broad and among their characteristic features are chemical resistence and thermal stability. Metal derivatives of polymers containing COOH groups are among the best known.The thermal behaviours of some monovalent and divalent metal acrylates have been reported [1 ]. Monomers containing divalent transition metals may be especially interesting for the preparation of coordination polymers and ionomers. In the present paper, therefore the thermal decompositions of zinc(ll), cobalt(ll}, nickel{ll) and copper(ll} acrylates and of their polymers were investigated and the results compared. Experimental Preparation of metal acrylatesMetal acrylates were prepared by the reaction of acrylic acid (5-10 wt.% stoichiometric excess) with zinc oxide, basic cobalt carbonate, basic nickel carbonate and cupric hydroxide, respectively, in toluene suspensions at 40-50 ~ . The reactions were carried out for 5 h, with gradual addition of the reactants and with constant stirring. The evaporated toluene lost from the reaction vessel was constantly replaced. Water formed in the reactions was removed as an azeotropic mixture with toluene.7inc, copper and cobalt acrylates were washed with toluene and then dried in a vacuum drier at 40-50 ~ Nickel acrylate, after a preliminary drying, was ground, washed with acetone and finally vacuum-dried like the other monomers.

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“…The formation of crack-carbon often takes place when thermal decomposition is performed in a non-oxidizing atmosphere [5][6][7] and sometimes even in air [1].…”

Section: Decomposition Residuesmentioning

confidence: 99%

mentioning

confidence: 99%

The thermal decompositions of some transition metal acrylates and polyacrylates

Gronowski

Wojtczak

1983

Journal of Thermal Analysis

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“…The lowest temperature of this effect was observed for strontium methacrylate (190 ~ and the highest for potassium methacrylate (340~ A comparison of the data from Table 1 with the literature data [3] reveals the same Tp value for magnesium acrylate monohydrate and minor differences of the order of 10 and 20 deg for the respective Tp values of anhydrous zinc acrylate and sodium acrylate. However, a large difference is observed in the case of calcium acrylate semihydrate (Tp = 285 ~ and calcium acrylate dihydrate [3] (Tp --180~…”

Section: B) Thermal Polymerizationmentioning

confidence: 49%

“…The thermal behaviour of Na, Ca, Mg and Zn acrylates was investigated [3] in air and argon. It was found that the anhydrous acrylates were subject to thermal polymerization, which preceded the main decomposition.…”

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confidence: 99%

Study of the thermal behaviour of several metal acrylates and methacrylates

Wojtczak

Gronowski

1990

Journal of Thermal Analysis

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The thermal behaviour of several metal acrylates and methacrylates was investigated and the temperature characteristics were determined. The main decomposition of the monomer was preceded by thermal polymerization. The values of the peak temperatures of this effect do not correlate either with the thermal stabilities or with the Q values of the Alfrey-Price scheme of the monomers. The thermal resistance of the salts depends on the type of cations present, but there is no simple relationship. Divalent metal acrylates are thermally more stable than the corresponding methacrylates.In recent years, metal-containing monomers and polymers have been studied intensively. This is due to a number of valuable properties exhibited by coordination polymers and ionomers. The area of application of such polymers is continually becoming broader, and their characteristic features include chemical resistance and thermal stability. Metal derivatives of o polymers containing COOH grups are a subject of great interest.The results of thermal and gas-chromatographic analyses revealed the higher stabilities of sodium methaerylate and polymethaerylate than those of the corresponding potassium salts [1]. The activation energies of the processes of thermal destruction were calculated.Polymers of lithium, sodium, potassium and caesium salts of methacrylie acid [2] were stable to ca. 350 ~ under programmed heating at 10 deg/min in vacuo. The principal decomposition products were analyzed and identified, and a mechanism was proposed for the degradation.The thermal behaviour of Na, Ca, Mg and Zn acrylates was investigated [3] in air and argon. It was found that the anhydrous acrylates were subject to thermal polymerization, which preceded the main decomposition. Metal

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“…6) exhibited weight loss with temperature. 38,39 The copolymer was stable up to 140°C. The thermal behavior data were as follows:…”

Section: Thermal Analysismentioning

confidence: 98%

Interpenetrating polymer networks of poly(butyl methacrylate) and poly(α‐terpineol‐co‐styrene): Synthesis and characterization

Pathak

Srivastava

2006

J of Applied Polymer Sci

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Simultaneous interpenetrating polymer networks (IPNs) based on poly(butyl methacrylate) and poly(␣-terpineol-co-styrene) were synthesized with azobisisobutyronitrile (AIBN) as the initiator and divinyl benzene as the crosslinking agent in xylene under an inert nitrogen atmosphere. Fourier transform infrared spectra provided structural evidence for the IPNs, indicating characteristic frequencies of ester groups of butyl methacrylate at 1723 cm Ϫ1 and alcoholic groups of ␣-terpineol at 3436 cm Ϫ1. Scanning electron microscopy revealed threadlike network structures. Properties such as percentage swelling and average molecular weight between crosslinks were direct functions of the copolymer and initiator (AIBN) concentrations and inverse functions of the monomer (butyl methacrylate) and crosslinking agent (divinyl benzene) concentrations. Differential scanning calorimetry showed an IPN glass-transition temperature at 80.2°C. The thermal decompositions of the IPNs were established with the help of thermogravimetric analysis. The value of the activation energy, calculated from thermogravimetric analysis with the Coats and Redfern equation, was 23 kJ/mol.

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Study of the thermal behaviours of some metal acrylates

Cited by 23 publications

References 3 publications

The thermal decompositions of some transition metal acrylates and polyacrylates

The thermal decompositions of some transition metal acrylates and polyacrylates

Study of the thermal behaviour of several metal acrylates and methacrylates

Interpenetrating polymer networks of poly(butyl methacrylate) and poly(α‐terpineol‐co‐styrene): Synthesis and characterization

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