Thermal behavior of pentachlorophenyl methacrylate–acrylonitrile copolymers

Azab, M. M.

doi:10.1002/app.13201

Cited by 8 publications

(4 citation statements)

References 24 publications

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“…A similar result was obtained previously from the fragmentation patterns of p-acryloyloxy-tri-n-butyltin benzoate. 2003) and fragmentation patterns of pentachlorophenyl Methacrylate (Azab, 2003) The exotherm at 459°C may represent a complete decomposition. Moreover, in a separate experiment when PMAQ was heated at 459°C, a black soluble mass remained, indicating that no crosslinking reaction occurred.…”

Section: Thermal Behaviormentioning

confidence: 99%

Thermal Behavior of 8-methacryloxy-quinoline-Acrylonitrile Copolymers

Mosalam¹,

Hamouly²,

Khalil³

et al. 2011

IJC

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Acrylonitrile was copolymerized with 8-methacryloxy-quinoline in Dimethylformamide using azobisisobutyronitrile as initiator. The composition of the copolymers was determined by nitrogen analysis and the monomer reactivity ratios (r 1 and r 2 ) were calculated. Both the homopolymer and the copolymers was characterized by a variety of spectral and thermal methods. Thermogravimetry and differential thermal analysis data showed that the comonomer (MAQ) initiates the nitrile oligomerization reaction in the copolymer upon heating. A mechanism for the initiation of (MAQ) units in the nitrile copolymers was also proposed.

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Section: Thermal Behaviormentioning

confidence: 99%

Thermal Behavior of 8-methacryloxy-quinoline-Acrylonitrile Copolymers

Mosalam¹,

Hamouly²,

Khalil³

et al. 2011

IJC

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“…Pentachlorophenyl methacrylate (PCPMA) was prepared by the reaction of pentachlorophenyl with the corresponding acid chloride or through the reaction of pentachlorophenol with the corresponding acid in the presence of DCCI as a condensing agent (Azab, 2004).…”

Section: Preparation Of Pentachlorophenyl Methacrylatementioning

confidence: 99%

“…The polymerization was commenced by adding AIBN in a concentration of 1 mol/100 mol monomer. The tube was flushed with O 2 -free nitrogen for 10 min; capped and thermostated at 708C for 4 h. The polymer was purified by re-precipitate from methanol, washed several times, dried and weighed (Azab, 2004).…”

Section: Polymerisation Of Pcpa or Pcpmamentioning

confidence: 99%

Preparation of new organotin polymers via exchange reactions

Azab

El-Dougdoug

2005

Pigment &Amp; Resin Technology

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Purpose -Preparation of new organotin polymers via a new synthetic route based on the exchange reactions of pentachlorophenyl acrylate or methacrylate with amino-tri-phenyltin benzoates or hydroxyl-tri-phenyltin benzoates. Design/methodology/approach -The pentachlorophenyl acrylate or methacrylate was prepared by polymerisation in solution with azobisisobutyrontrile as a free radical initiator. The polymers obtained were allowed to undergo exchange reactions with amino-tri-phenyltin benzoates or hydroxyl-tri-phenyltin benzoates. The structure of the polymers prepared was confirmed by IR spectroscopy. Films were prepared from purified organotin polymers solution on glass, PVC and tin plates. The release of tin compound from the films, when immersed in aqueous media, was assessed. The concentration of the released tin (ppm) was measured by atomic adsorption spectrophotometer. Findings -The new synthetic route was effective, the organotin polymers prepared had good film properties and the release of tin compounds increased with the content of tin in the organotin polymers.Research limitations/implications -The alkaline resistance of the polymeric films prepared needs improvement. Practical implications -The polymers prepared provide a family of effective polymeric fungicide useful for a number of applications including water sterilisation. Originality/value -The polymers prepared contained pendent triphenyltin moieties which slowly hydrolysed to give fungicidal and antifouling effects.

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“…The compounds of triphenyltin can be degraded to diphenyltin and monophenyltin by solar radiation, bacterial biodegradation and/or biological decomposition 7. In our previous work,8–12 the copolymerization parameters of organotin monomers with several vinyl monomers have been studied. The aim of the present work is to study the copolymerization reactions of p ‐acryloyloxybenzoic acid with the organotin monomers triphenyltin acrylate (TPTA), triphenyltin methacrylate (TPTMA), p ‐acryloyloxytriphenyltin benzoate (TPTB) and triphenyltin itaconate (TPTI) in order to obtain macromolecular chains to which the organotin moieties could be attached at some distance from the main backbone.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and copolymerization reactions of p‐acryloyloxybenzoic acid with organotin monomers

Azab

2004

Polymer International

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p‐Acryloyloxybenzoic acid (PAB) was prepared by the reaction of p‐hydroxybenzoic acid and acryloyl chloride in the presence of triethylamine. Triphenyltin acrylate (TPTA), triphenyltin methacrylate (TPTMA), p‐acryloyloxytriphenyltin benzoate (TPTB) and triphenyltin itaconate (TPTI) monomers were prepared by the reactions of acrylic, methacrylic, p‐acryloyloxybenzoic and itaconic acids, respectively, with triphenyltin hydroxide in the presence of dicyclohexylcarbodiimide (DCCI) as a dehydrating agent. Binary copolymerizations of PAB with TPTA, TPTMA, TPTB and TPTI were performed in dimethylformamide (DMF) using 1 mol% azobisisobutyronitrile (AIBN) as initiator at 65 °C. The structures of the monomers and copolymers were investigated by IR and 1H NMR spectrometry. The composition of the copolymers was determined by tin analysis. Copolymerization parameters for each system were calculated by both the Fineman–Ross and Kelen–Tüdös methods. The monomer reactivity ratios for the four systems studied, PAB‐TPTA, PAB‐TPTMA, PAB‐TPTB and PAB‐TPTI, were found to be r1 = 0.468, r2 = 2.096; r1 = 0.435, r2 = 2.292; r1 = 0.449, r2 = 2.225 and r1 = 0.416, r2 = 4.526, respectively. The average Q and e values for the prepared organotin monomers were calculated. Copyright © 2004 Society of Chemical Industry

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Thermal behavior of pentachlorophenyl methacrylate–acrylonitrile copolymers

Cited by 8 publications

References 24 publications

Thermal Behavior of 8-methacryloxy-quinoline-Acrylonitrile Copolymers

Thermal Behavior of 8-methacryloxy-quinoline-Acrylonitrile Copolymers

Preparation of new organotin polymers via exchange reactions

Synthesis and copolymerization reactions of p‐acryloyloxybenzoic acid with organotin monomers

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