Polymerization of Vinyl Acetate by Metal Alkyls

Fujii, Kiyoshi; Eguchi, Tamotsu; Ukida, Junji; Matsumoto, Masakazu

doi:10.1295/koron1944.16.519

Cited by 5 publications

(1 citation statement)

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“…Since the use of alkylboranes as the initiators for the polymerization of ordinary vinyl monomers was first reported by Furukawa et a1.l and independently by Kolesnikov et a1.,2 many publications on the alkylborane initiators have a~p e a r e d .~ Fujii et al 4 indicated that oxygen accelerated the polymerization of vinyl acetate by triethylborane and that small amounts of alcohol and water were effective as cocatalysts. Furukawa et al 5 found that oxygen and oxygen-containing compounds promoted the action of organoborane compounds in the polymerization of vinyl acetate.…”

Section: Introductionmentioning

confidence: 99%

Grafting of methyl methacrylate and its derivatives onto blood

Kojima¹,

Iwabuchi²,

Kojima³

et al. 1971

J. Polym. Sci. A‐1 Polym. Chem.

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The grafting of vinyl monomers by tri‐n‐butylborane to blood has been investigated. The infrared spectra indicated that the monomers were grafted onto blood components. The grafting seems to occur onto blood proteins, mainly onto hemoglobin. The presence of water was essential to the grafting. The hydrolysis of the graft suggests that basic amino acids in the blood proteins, such as lysine and histidine, play an important role in the grafting.

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Section: Introductionmentioning

confidence: 99%

Grafting of methyl methacrylate and its derivatives onto blood

Kojima¹,

Iwabuchi²,

Kojima³

et al. 1971

J. Polym. Sci. A‐1 Polym. Chem.

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The grafting of methyl methacrylate onto cotton by tri‐n‐butylborane

Kojima

Iwabuchi

Murakami

et al. 1972

J of Applied Polymer Sci

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SynopsisMethyl methacrylate was grafted onto cotton by tri-n-butylborane in the presence of water. No graft was obtained in organic solvents, i.e., in the absence of water. The percentage of grafting increased with increases in reaction time, cotton amount, and initiator concentration. Pretreatment of cotton with pyridine also enhanced the percentage of grafting. Glycidyl methacrylate and ethyl acrylate were grafted onto cotton by tri-n-butylborane, while no grafting occurred when vinyl acetate and 4-vinyl pyridine were used. Usual radical initiators, such as azobisisobutyronitrile and benzoyl peroxide/ dimethyl-p-toluidine, were not effective under the same conditions.

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