p-Acetyl Benzylidene Triphenylarsonium Ylide Initiated Radical Terpolymerization of Styrene, Acrylonitrile and Copper Acrylate: Synthesis, Characterization and Properties

Shukla, Prerna; Srivastava, Anita

doi:10.1002/(sici)1097-0126(199612)41:4<407::aid-pi629>3.3.co;2-s

Cited by 2 publications

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“…A search of the literature reveals that a few ternary polymerization systems have been reported. Examples are acrylonirile (AN)–vinyl pyrrolidone–styrene (St) initiated by azobisisobutyronitrile (AIBN),1 citronelol–St–methyl methacrylate (MMA) initiated by benzoyl peroxide (BPO),2 St–MMA–AN initiated by arsenic sulphide complex3 and St–AN–copper acrylate initiated by p ‐acetylbenzylidenetriphenyl arsonium ylide 4…”

Section: Introductionmentioning

confidence: 99%

Analysis of imidacloprid residues in fruits, vegetables, cereals, fruit juices, and baby foods, and daily intake estimation in and around Lucknow, India

Kapoor¹,

Srivastava²,

Srivastava³

et al. 2013

Enviro Toxic and Chemistry

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Abstract-A total of 250 samples-including fruits, fruit juices, and baby foods (50 samples each), vegetables (70 samples), and cereals (30 samples)-were collected from Lucknow, India, and analyzed for the presence of imidacloprid residues. The QuEChERS (quick, easy, cheap, effective, rugged, and safe) method of extraction coupled with high-performance liquid chromatographic analysis were carried out, and imidacloprid residues were qualitatively confirmed by liquid chromatography-mass spectrometry. Imidacloprid was not detected in samples of fruit juices and baby foods. It was, however, detected in 38 samples of fruits, vegetables, and cereals, which is about 15.20% of the total samples. Of samples of fruits, 22% showed the presence of imidacloprid, and 2% of samples showed residues above the maximal residue limit. Although imidacloprid was detected in 24% of vegetable samples, only 5.71% showed the presence of imidacloprid above the maximal residue limit. However, 33% of cereal samples showed the presence of imidacloprid, and about 3% of samples were above the maximal residue limit. The calculated estimated daily intake ranged between 0.004 and 0.131 mg/kg body weight, and the hazard indices ranged from 0.007 to 0.218 for these food commodities. It is therefore indicated that lifetime consumption of vegetables, fruits, fruit juices, baby foods, wheat, rice, and pulses may not pose a health hazard for the population of Lucknow because the hazard indices for imidacloprid residues were below one. Environ. Toxicol. Chem. 2013;32:723-727. # 2012 SETAC

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Section: Introductionmentioning

confidence: 99%

Analysis of imidacloprid residues in fruits, vegetables, cereals, fruit juices, and baby foods, and daily intake estimation in and around Lucknow, India

Kapoor¹,

Srivastava²,

Srivastava³

et al. 2013

Enviro Toxic and Chemistry

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“…A search of literature revealed that most of the work has been devoted to the terpolymerization of three vinyl monomers, such as poly(ethylene glycol) ethylether methacrylate‐ co ‐methacrylic acid‐ co ‐sodium styrene sulfonate,1 methyl methacrylate (MMA)‐ co ‐acrylonitrile‐ co ‐4‐vinylpyridine and styrene (Sty),2 maleic anhydride–( n ‐butyl methacrylate)–Sty–acrylonitrile,3 acrylamide–acrylic acid–acrylonitrile,4 Sty–vinylpyrrolidone–acrylonitrile,5 Sty–acrylonitrile–copperacrylate,6 and Sty–acrylonitrile–chromium acrylate 7. However, reports regarding the synthesis of terpolymers containing a terpene as one of the monomers are scarce, except for a few recent contributions from our laboratory, such as for the syntheses of citronellol–Sty–MMA/benzoyl peroxide (BPO)/80°C8 and linalool–Sty–MMA/BPO/80°C 9.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of a terpolymer of limonene, styrene, and methyl methacrylate via a free‐radical route

Sharma

Srivastava

2003

J of Applied Polymer Sci

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ABSTRACT:The free-radical terpolymerization of a monocyclic terpene, namely, limonene (Lim), with styrene (Sty) and methyl methacrylate (MMA) in xylene at 80 Ϯ 0.1°C for 2 h, with benzoyl peroxide (BPO) as an initiator under an inert atmosphere of nitrogen was extensively studied. H-NMR spectra showed peaks at 7.3-8.1, 3.9 -4.4, and 5.0 -5.5 ␦ due to the phenyl, methoxy, and trisubstituted olefinic protons of Sty, MMA and Lim, respectively. The values of the reactivity ratios r 1 (MMA; 0.33) and r 2 (Sty ϩ Lim; 0.06) were calculated with the Kelen-T udos method.

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p-Acetyl Benzylidene Triphenylarsonium Ylide Initiated Radical Terpolymerization of Styrene, Acrylonitrile and Copper Acrylate: Synthesis, Characterization and Properties

Cited by 2 publications

References 0 publications

Analysis of imidacloprid residues in fruits, vegetables, cereals, fruit juices, and baby foods, and daily intake estimation in and around Lucknow, India

Analysis of imidacloprid residues in fruits, vegetables, cereals, fruit juices, and baby foods, and daily intake estimation in and around Lucknow, India

Synthesis and characterization of a terpolymer of limonene, styrene, and methyl methacrylate via a free‐radical route

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