Functional Polymers. XLII. 4-Vinyl (or 4-Isopropenyl)-2,6-di-t-butylphenol: Synthesis and Copolymerization

Grosso, Paul V.; Vogl, Otto

doi:10.1080/00222338608081111

Cited by 14 publications

(2 citation statements)

References 3 publications

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“…21 In addition, the copolymer of 2,6-di-tert-butyl-4-isopropenylphenol and n-butylacrylate was obtained by radical polymerization with AIBN. 22 Therefore, the fact that 3a was polymerized with AIBN could be explained by the less easily oxidizable hydroxyl group of phenylhydrogalvinoxyl than that of 2,6-di-tert-butylphenol (Scheme 1).…”

Section: Synthesismentioning

confidence: 98%

Polymerization of (p-vinylphenyl)hydrogalvinoxyl and formation of a stable polyradical derivative

Kaneko

Tatsumi

Aoki

et al. 1999

J. Polym. Sci. A Polym. Chem.

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Section: Synthesismentioning

confidence: 98%

Polymerization of (p-vinylphenyl)hydrogalvinoxyl and formation of a stable polyradical derivative

Kaneko

Tatsumi

Aoki

et al. 1999

J. Polym. Sci. A Polym. Chem.

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“…Hindered phenols have been used as effective antioxidants for polymers. We synthesized 2,6‐di‐ tert ‐butyl‐4‐vinylphenol as a potential polymerizable antioxidant 75, 76. It was copolymerized with butadiene and isoprene by radical emulsion polymerization.…”

Section: Functional Polymersmentioning

confidence: 99%

Effect of temperature and span series surfactant on the structure of polysulfone membranes

Tsai

Ruaan

Wang

et al. 2002

J of Applied Polymer Sci

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A macrovoid structure was found in polysulfone membranes formed by the wet-inversion method using N-methylpyrrolidinone (NMP) and water as the solvent/nonsolvent pair. The addition of Span series surfactants in the casting solution was found to inhibit the macrovoid formation. Sorbitan monooleate (Span-80) was more effective in inhibiting macrovoids than was sorbitan monolaurate (Span-20). The phenomenon of macrovoid suppression became more prominent at higher temperature. The cloud-point shift might account for the temperature effect. But there was no simple explanation for the effect caused by Span-80. The cloud-point position, the demixing rate, and the viscosity of the casting solution were measured. None of them could explain the effect of macrovoid inhibition by the addition of Span-80. However, the penetration test indicated that the penetration of a nonsolvent into a surfactant-free casting solution was caused by a convective flow, but that into Span-80 was through diffusion. It was found that the retardation of nonsolvent penetration was the major cause of macrovoid inhibition.

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New polymer additives, 3. Telechelic additives for polyolefins

Wanicek

Gruber

Greber

1993

Angew. Makromol. Chem.

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A series of telechelic additives with molecular weights of 500-1500 for polyolefins was prepared by reaction of telechelic polyolefins with functional antioxidants, light stabilizers and optical brighteners. The telechelic polyolefins with amino-, carboxyand aldehyde end groups were obtained by hydrogenation of the corresponding telechelic polybutadienes which were prepared by radical polymerization of butadiene with appropriate functional initiators as well as by anionic polymerization of butadiene and termination with carbon dioxide, ethylene oxide and chloroacetaldehyde dimethyl acetal. Oligomeric polyolefins with stabilizer end groups attached by non-hydrolyzable C-C-bonds were obtained by end-capping of living polybutadiene with appropriate functional additive components and subsequent hydrogenation. Preliminary tests of some of the telechelic additives demonstrated excellent compatibility with polypropylene and efficiencies similar to low-molecular standard additives. ZUSAMMENFASSUNG:Eine Reihe von neuen telechelen Additiven rnit Molekulargewichten zwischen 500 und 1 500 fur Polyolefine wurden durch Reaktion von funktionellen Antioxidantien, Lichtschutzmitteln und optischen Aufhellern rnit den Endgruppen von telechelen Polyolefinen hergestellt. Die telechelen Polyolefine rnit Amino-, Carboxy-und Aldehyd-Endgruppen wurden durch katalytische Hydrierung der entsprechenden telechelen Polybutadiene erhalten, die zum einen durch radikalische Polymerisation von Butadien rnit geeigneten funktionellen Startern, zum anderen durch Kettenabbruch von anionisch polymerisiertem Butadien mit CO,, Ethylenoxid und Chloracetaldehyddimethylacetal erhalten wurden. Telechele Stabilisatoren rnit uber hydrolysebestandige C-C-Bindungen gebundenen Wirkstoff-Endgruppen wurden durch Kettenabbruch von lebendem Polybutadien rnit geeigneten Additivkomponenten hergestellt. Orientie-* Part 2, cf.'. rende Tests einiger der oligomeren Additive zeigten neben hervorragender Vertraglichkeit mit Polypropylen ahnliche Wirksamkeiten wie kommerzielle niedermolekulare Vergleichssubstanzen.

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Functional Polymers. XLII. 4-Vinyl (or 4-Isopropenyl)-2,6-di-t-butylphenol: Synthesis and Copolymerization

Cited by 14 publications

References 3 publications

Polymerization of (p-vinylphenyl)hydrogalvinoxyl and formation of a stable polyradical derivative

Polymerization of (p-vinylphenyl)hydrogalvinoxyl and formation of a stable polyradical derivative

Effect of temperature and span series surfactant on the structure of polysulfone membranes

New polymer additives, 3. Telechelic additives for polyolefins

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