A. Cooper

Lockheed Martin (United States)

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C.J. Batty

Rutherford Appleton Laboratory

K. Braune

University of California, Los Angeles

L. Montanet

European Organization for Nuclear Research

U. Strohbusch

Universität Hamburg

Castulus Kolo

Hochschule Macromedia

K. Beuchert

Ruhr University Bochum

T. Case

University of California, Berkeley

D. Engelhardt

University of Bamberg

D. Jamnik

University of California, Los Angeles

P. Schmidt

University of Birmingham

Cooperative Institutions

University of California, Berkeley

Johannes Gutenberg University Mainz

European Organization for Nuclear Research

Ludwig-Maximilians-Universität München

University of Zurich

University of Bonn

Ruhr University Bochum

Karlsruhe University of Education

Lawrence Berkeley National Laboratory

Queen Mary University of London

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Three I=0 JPC=2−+ mesons

Physics Letters B (2000)

A. V. Anisovich C.A. Baker C.J. Batty D.V. Bugg A. Cooper

10.1016/s0370-2693(00)00236-7

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Citations (20)

Gel permeation chromatography: Physical characterization and chromatographic properties of corning porous glasses

Journal of Applied Polymer Science (1971)

A. Cooper Alfred R. Bruzzone J. H. Cain Edward M. Barrall

Abstract Five porous glasses, manufactured by Corning, reputed to have very narrow pore size distributions, have been characterized by mercury porosimetry, nitrogen adsorption–desorption isotherms, and electron microscopy. The characteristics of these glasses as packing materials in gel permeation chromatography have been determined. Using polystyrene solutes and toluene solvent at room temperature, the glasses in series combination of columns are capable of separating molecular weights from a few thousand to several million. These glasses are compared with other available materials for column packings in gel permeation chromatography.

Gel permeation chromatography

Polystyrene

Porosimetry

Porous glass

10.1002/app.1971.070150306

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Citations (23)

Polymeric Separation Media

Springer eBooks (1982)

A. Cooper

Separation (statistics)

10.1007/978-1-4613-3371-5

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Citations (8)

Aging characterization of silicone elastomers using hyphenated techniques.

Society of Plastics Engineers. Annual Technical Conference (1989)

A. Cooper Melanie Steiner Genald McCauley Grzegorz Kwiatkowski J. G. Moncur

Silicone Elastomers

Characterization

Source

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Citations (0)

$$\bar pp$$ Annihilation at rest into K L 0 K S 0 π0π0Annihilation at rest into K L 0 K S 0 π0π0

Il Nuovo Cimento A (1994)

C. Amsler D. S. Armstrong I. Augustin C.A. Baker B. M. Barnett

Annihilation

Bar (unit)

Rest (music)

10.1007/bf02733991

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Citations (1)

An improved apparatus for oxygen bomb testing

Journal of the American Oil Chemists Society (1979)

A. Cooper David P. Matzinger Thomas E. Furia

Abstract An improved oxygen bomb apparatus has been developed. The increased precision and readability of the continuous pressure recording allows a new method of end‐point measurement. It was possible to use smaller test samples than any previously reported. Sample size and oxygen pressure were shown to be relatively unimportant variables. Temperature is the most useful variable for controlling test time. This is preferable over sample dispersion or addition of catalysts in terms of simplifying the procedure. Peroxide formation at the oxygen bomb test end point is three to four times the value at the end point of the Active Oxygen Method.

Sample (material)

Test equipment

10.1007/bf02671751

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Citations (4)

Gel permeation chromatography: Fast flow rate studies with porous glass column packings

British Polymer Journal (1973)

A. Cooper

Abstract Comparisons have been made between gel permeation chromatograms obtained at solvent flow rates of 1.0 and 4.5 ml/min. Using a 24 ft column series packed with Bio Glas the pressure drop was 200 lb/in 2 which is within the operating range of all gel permeation chromatographs and is considerably less than when crosslinked polystyrene gels are used. The chromatograms from the Bio Glas packed columns exhibited skewing, similar to that reported previously for polystyrene gel packed columns. An analysis of these chromatograms indicated that the increased peak width caused by the faster flow rate was serious. Typically M w / M n values calculated at 4.5 ml/min were double their true values. Additionally skewing badly distorted the differential molecular weight distribution for molecular weights of 411 000 and higher. Previous studies in this area had not described quantitatively this adverse effect of increasing solvent flow rate in gel permeation chromatography.

Gel permeation chromatography

Polystyrene

Molar mass distribution

10.1002/pi.4980050205

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Citations (2)

Hidden and open $$\bar ss$$ production in $$\bar pp$$ annihilation at restannihilation at rest

Il Nuovo Cimento A (1994)

C. Amsler D. S. Armstrong I. Augustin C.A. Baker B. M. Barnett

Annihilation

Bar (unit)

Rest (music)

Branching (polymer chemistry)

10.1007/bf02733989

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Characterization and Properties of Macromolecules. XII. Numerical Treatment of Gel Permeation Chromatography Data

Journal of Liquid Chromatography (1979)

A. Cooper David P. Matzinger

Abstract Gel permeation chromatography provides a continuous recording of polymer concentration as a function of elution time. The latter may be converted by appropriate calibration into molecular weight. The chromatogram may be analyzed numerically to yield the various molecular weight averages. This process involves a number of assumptions and approximations. The magnitude of the errors introduced in the calculated molecular weight averages by the methods described in the literature are reported.

Gel permeation chromatography

Molar mass distribution

Characterization

10.1080/01483917908060046

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Citations (5)

Gel permeation chromatography: The effect of treatment with hexamethyldisilazane on porous glass packings

Journal of Applied Polymer Science (1969)

A. Cooper Julian F. Johnson

Abstract Porous glass column packings have been shown to be an effective substrate for gel permeation chromatography. When carbon tetrachloride is used as a solvent in conjuction with infrared detection, the porous glass exhibits adsorptive properties with polystyrene and polyisobutene. A procedure to eliminate these undesirable properties by treatment with hexamethyldisilazane has been developed. Experiments showed complete elution of all injected polymer. The treatment thus permits quantitative fractionation studies using infrared detection.

Gel permeation chromatography

Polystyrene

Porous glass

10.1002/app.1969.070130711

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Citations (31)