NEWS 11:15 Determination of Free Carbonyl and Unbound Water in Polyacrolein by Infrared Spectrometry. J. W. Forbes, D. O. Schissler, Shell Development Co., 1400 53rd St., Emery ville 8, Calif. 11:30 Determination of Polyacrolein Labeled with Tritium or Carbon-14. R. J. Carr, Β. Ε. Gordon, Shell Development C o , 1400 53rd St., Emeryville 8, Calif. 11:45 Intrinsic Viscosity of Polyacrolein. Ε . Ε . Seibert, Shell Development C o , 1400 53rd S t , Emeryville 8, Calif. Wednesday A f t e r n o o n , September 2 SYMPOSIUM O N ANALYSIS OF H I G H
POLYMERS
(Joint with Division of Polymer Chemistry) John Mitchell, Jr., Presiding
2:00 Structural and Compositional Analysis of Polymers by High Hesolution NMB. C. W. Wilson III, Union Car bide C o r p , P. O. Box 8361, South Charleston, W. Va. 2:30 Characterization of Stereochemical Regulation of Polypropylene. James C. Woodbrey, Q. A. Trementozzi, Monsanto C o , Springfield, Mass. 2:50 Relaxation Phenomena in High Polymers. Arthur E . Woodward, 101 Osmond Lab, Pennsylvania State University, University Park, Pa. 16802; John A. Sauer, Rutgers-The State University, University Heights Campus, New Bruns wick, N. J. 3:30 Characterization of Polymer Orientation by Birefrin gence. Richard S. Stein, University of Massachusetts, Amherst, Mass. 4:00 Investigation of Polymer Structure by X-Ray Diffrac tion. A. R. Paterson, L. G. Roldan, Allied Chemical C o r p , P. O. Box 309, Morristown, N. J. 4:30 Projection X-Ray Microscopy of Polymeric Systems. Sanford B. Newman, National Bureau of Standards, Room 2013 Industrial B l d g , Washington, D. C. 20234.
SYMPOSIUM O N CHARACTERIZATION AND OF POLYMERS
FRACTIONATION
(Joint with Division of Polymer Chemistry) Fred W . Billmeyer, Jr., Presiding
9:00 Characterization of Molecular Weight Distributions in High Polymers. F . W. Billmeyer, Jr., Rensselaer Polytech nic Institute, Troy, Ν. Υ. 10:00 Review of Solution Methods and Certain Other Meth ods of Polymer Fractionation. Nathaniel S. Schneider, Massachusetts Institute of Technology, Cambridge 39, Mass. 11:00 Large Scale Elution Fractionation of Polymers. A. S. Kenyon, I. O. Salyer, J. E. Kurz, D. Brown, Monsanto C o , St. Louis, Mo. 11:15 Discussion. 11:30 The Molecular Structure of Polyethylene. XVI. Analytical Column Fractionation. V Kokle, Du Pont C o , Wilmington, D e l , F . W. Billmeyer, Jr., Rensselaer Polytechnic Institute, Troy, Ν. Υ. 11:50 Discussion. T h u r s d a y A f t e r n o o n , September 3
SECTION A SYMPOSIUM ON CHARACTERIZATION AND OF POLYMERS
T h u r s d a y M o r n i n g , September 3
SECTION A
FRACTIONATION
(Joint with Division of Polymer Chemistry) Fred. W . Billmeyer, Jr., Presiding
2:00 Gel Permeation Chromatography. II. The Nature of the Separation. J. C. Moore, J. G. Hendrickson, Dow Chemical C o , B-1214 Bldg, Freeport, Texas. 2:20 Comparison of the Solution and Gel Permeation Frac tionation of a Cis-l,4-Polybutadiene. Dale J. Harmon, B. F . Goodrich Research Center, Brecksville, Ohio 44141. 2:35 Applications of Gel Permeation Chromatography to High and Low Molecular Weights. L. E. Maley, Waters Assoc, Inc., 45 Franklin S t , Framingham, Mass.
WOULD YOU USE A
RUBBER RULER? Even α fancy one can't be calibrated accurately. Wide bandwidth light absorbance photometers give the same trouble.
• Beer's Absorbance Law applies rigorously only to monochromatic (extremely narrow bandwith) optical systems.
Here is a flow-type UV densito meter with a l/1000th bandwidth of 0.6 millimicron. It measures in true linear absorbance (not percent transmittance) in two ranges: 0 to 0.5 and 0 to 2.5 absorbance units. It has a built-in recorder. It works in a cold room, ft can actuate an accessory fraction collector at the beginning and end of each absor bance peak, depositing each UVabsorbing fraction in a separate collecting tube. The price of this instrument?
$845
• The ISCO Model UA Ultraviolet Analyzer has the narrowest bandwidth of any UV flow densito meter. So narrow t h a t you don't need to operate at wavelengths near absorbance maxima. ^••••••••••••••••••••••••IIIIMIIII
= UV ABSORBANCE : RECORDER FOR FLOW = STREAMS ISCO UA _^_4-_f.4_4_
Also useable with the ISCO density gradient fractionator.
INSTRUMENTATION SPECIALTIES CO. DEPT. Ul
5624 SEWARD AVE.,
Circle No. 12S on Readers' Service Card
40 A
.
ANALYTICAL CHEMISTRY
LINCOLN, NEBRASKA 68507
