Global oil assessments and the search for non-OPEC oil

Masters, Charles D.

doi:10.3133/ofr86373

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World Petroleum Assessment1

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1987

1991

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Cited by 3 publications

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“…The lignin component in fraction B has been changed from water-wettable to water-nonwettable. 4. Fraction C cannot be dissolved in benzene or aqueous base.…”

Section: Resultsmentioning

confidence: 99%

Graft 1-phenylethylene copolymers of lignin. 1. Synthesis and proof of copolymerization

Meister¹,

Chen²

1991

Macromolecules

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A method of grafting lignin has been developed which allows 1-phenylethylene (polystyrene) graft copolymers of lignin to be quantitatively made. The grafting reaction is a solution polymerization often run in aprotic, polar, organic solvents. The reaction initiates free-radical grafting of lignin by a redox reaction involving hydrogen peroxide and chloride ion. Grafting changes the solubility and surface properties of lignin, converting it to a thermoplastic. The lignins grafted have been obtained from pine by kraft process and hardwoods by base extraction.

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“…The lignin component in fraction B has been changed from water-wettable to water-nonwettable. 4. Fraction C cannot be dissolved in benzene or aqueous base.…”

Section: Resultsmentioning

confidence: 99%

Graft 1-phenylethylene copolymers of lignin. 1. Synthesis and proof of copolymerization

Meister¹,

Chen²

1991

Macromolecules

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“…Without question, some of the contributors of those early years did little more than offer their approval to work done by others, but the previous named assessors plus authors such as Moody & Esser, in 1975, Jodry, in 1972, and Nehring, in 1978 and in 1982, were expressing the work of many associates as developed through company activities. We have had occasion to compare our work (8) with recent US and Soviet assessments (13). Generally speaking, the recent US assessments are marginally less than ours, while Soviet assess ments have been greater.…”

Section: World Petroleum Assessmentmentioning

confidence: 78%