Copolymers of N-cyclohexylacrylamide and n-butyl acrylate: synthesis, characterization, monomer reactivity ratios and mean sequence length

Pazhanisamy, P.; Reddy, B. S. R.

doi:10.3144/expresspolymlett.2007.55

Cited by 18 publications

(10 citation statements)

References 17 publications

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“…As shown in Table , the values of the product of r 1 and r 2 for the copolymer series range from 0.95 to 1.04. As these values diverge further from unity, the distribution will become less random . The results of the monomer reactivity ratio of the copolymer series indicate that the constructed copolymer series were polymerized by nearly random copolymerization.…”

Section: Resultsmentioning

confidence: 93%

Synthesis of imide‐based methacrylic monomers and their copolymerization with methyl methacrylate: monomer reactivity ratios and heat resistance properties

Baek

Hwang

2018

Polymer International

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The newly designed methacrylic monomer series 4-phthalimidocyclohexyl methacrylate (PCMA), 4-hexahydrophthalimidocyclohexyl methacrylate (HPCMA) and 4-hexahydro-3,6-methanophthalimidocyclohexyl methacrylate (HMPCMA) were synthesized. Their homopolymers and methyl methacrylate (MMA) based copolymer series were polymerized by free-radical polymerization. The copolymer compositions were characterized using 1 H NMR spectra. The monomer reactivity ratios were calculated employing the Fineman−Ross (F-T) and Kelen−Tüdös (K-T) methods at low conversion. The values of r 1 and r 2 obtained by the F-T and K-T methods appear to be in close agreement (their average values are r 1 = 1.3061 and r 2 = 0.7336 for poly(PCMA-co-MMA), r 1 = 1.5169 and r 2 = 0.6840 for poly(HPCMA-co-MMA), r 1 = 1.7748 and r 2 = 0.5664 for poly(HMPCMA-co-MMA)) . The thermal stabilities and thermomechanical characteristics of the homopolymer and copolymer series were investigated by differential scanning calorimetry, thermogravimetric analysis and dynamic mechanical thermal analysis.

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Section: Resultsmentioning

confidence: 93%

Synthesis of imide‐based methacrylic monomers and their copolymerization with methyl methacrylate: monomer reactivity ratios and heat resistance properties

Baek

Hwang

2018

Polymer International

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“…NCMA monomer was synthesised as follows (Cankaya and Temuz, 2014;Chitra et al, 2010;Pazhanisamy and Reddy, 2007). Methacryloyl chloride (12 mmoles) in 30 mL pure acetone was added drop by drop to a solution of 10 mmoles cyclohexylamine and 10 mmoles triethylamine in 250 mL pure acetone, over a one-hour period at 0-5°C, and the reaction contents were stirred.…”

Section: Synthesis Of N-cyclohexylmethacrylamide Monomermentioning

confidence: 99%

“…These polymers might identify a stimulus as a signal and then react with a considerable change in their properties (Okano, 1998). For example, substituted meth/acrylamides are used as polymer and thermosensitive materials (Pazhanisamy and Reddy, 2007;Ari et al, 2013), and polymers which can adapt to surrounding environments by changing shape with thermal and electrical signals are used as thermosensitive polymers (Lu et al, 2013(Lu et al, , 2015.…”

Section: Introductionmentioning

confidence: 99%

A study of experimental and theoretical analysis of N-cyclohexylmethacrylamide monomer based on DFT and HF computations

Akman

Çankaya

2016

PRT

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Purpose This paper aims to synthesise and characterise N-cyclohexylmethacrylamide (NCMA) monomer which contains thermosensitive group. The characterisation of monomer was performed both theoretically and experimentally. Design/methodology/approach The monomer was prepared by reacting cyclohexylamine with methacryloyl chloride in the presence of triethylamine at room temperature. The synthesised monomer was characterised by using not only Density Functional Theory (DFT) and Hartree–Fock (HF) with the Gaussian 09 software but also fourier transform infrared (FT–IR), 1H and 13C nuclear magnetic resonance (NMR) spectroscopy. Findings Both the experimental and the theoretical methods demonstrated that the monomer was successfully synthesised. The vibrational frequencies, the molecular structural geometry, such as optimised geometric bond angles, bond lengths and the Mulliken atomic charges of NCMA were investigated by using DFT/B3LYP and HF methods with the 3-21G* basis set. The experimental results were compared with theoretical values. The results revealed that the calculated frequencies were in good accord with the experimental values. Besides, frontier molecular orbitals (FMOs) and molecular electrostatic potential of NCMA were investigated by theoretical calculations at the B3LYP/3–21G* basis set. Research limitations/implications Monomer and polymer containing a thermosensitive functional group have attracted great interest from both industrial and academic fields. Their characterisation can provide great opportunities for polymer science by using DFT and HF methods. Originality/value The monomer containing a thermosensitive functional group and a various polymer may be prepared by using DFT and HF methods described in this paper. The calculated data are greatly important to provide insight into molecular analysis and then used in technological applications.

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“…Pazhanisamy and coworkers synthesized copolymers of N-cyclohexylacrylamide/ n-butyl acrylate [4]. M. G. Patel et al synthesized 2,4-Dichlorophenyl-acrylate monomer from 2,4-Dichlorophenol and acryloyl chloride.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization and Biological Activity of Thiourea Containing Polymers

Hai

Whhab

Ahmed

2013

Al-Azhar Bulletin of Science- Basic Science Sector

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N-acryloyl-N-phenylthiourea (APTU) is synthesized by reacting acryloyl chloride with phenylthiourea in the presence of triethylamine (TEA) as a base and characterized by FT-IR, 1 H-NMR and mass spectra. The acrylic polymers from different feed ratios of ethylacrylate (EA), methylmethacrylate (MMA), styrene (St) and APTU have been prepared by emulsion polymerization in water containing sodium lauryl sulfate as a surfactant and ammonium persulfate as a water-soluble radical initiator. The polymers are characterized by FT-IR spectroscopy. The solubility is tested in various polar and non-polar solvents. The molecular weight and polydispersity are determined using gel permeation chromatography (GPC). Thermal behavior of the prepared polymers is also investigated by thermogravimetrical analysis (TGA). The polymers are tested for their antimicrobial activities against selected microorganisms.

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Copolymers of N-cyclohexylacrylamide and n-butyl acrylate: synthesis, characterization, monomer reactivity ratios and mean sequence length

Cited by 18 publications

References 17 publications

Synthesis of imide‐based methacrylic monomers and their copolymerization with methyl methacrylate: monomer reactivity ratios and heat resistance properties

Synthesis of imide‐based methacrylic monomers and their copolymerization with methyl methacrylate: monomer reactivity ratios and heat resistance properties

A study of experimental and theoretical analysis of N-cyclohexylmethacrylamide monomer based on DFT and HF computations

Synthesis, Characterization and Biological Activity of Thiourea Containing Polymers

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