Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Kent B. Abbås"'
Autor:
Kent B. Abbås
Publikováno v:
Polymer Engineering & Science. 20:703-707
Polycarbonate was recycled in a capillary rheometer at high constant shear stresses (0.15–0.95 MPa) and at temperatures between 275 and 320°C. Changes in melt viscosity and molecular weight were evaluated. Significant polymer degradation was obser
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df200fdbdb21a158e4c13c4b88ab0c96
https://doi.org/10.1002/pen.760201013
https://doi.org/10.1002/pen.760201013
Autor:
Kent B. Abbås, Roger S. Porter
Publikováno v:
Journal of Applied Polymer Science. 20:1301-1312
An investigation has been made of the magnitude and the source of degradation of polystyrene in model extrusion experiments. A preformed solid plug of a narrow-distribution, high molecular weight polystyrene (Mw = 2 × 106) was used for each experime
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::25186726fd2fa7fabd4e1301afba793e
https://doi.org/10.1002/app.1976.070200513
https://doi.org/10.1002/app.1976.070200513
Autor:
Kent B. Abbås, Erling M. Sörvik
Publikováno v:
Journal of Vinyl and Additive Technology. 2:152-159
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78bbb434f4aa66e303ecac56dea20359
https://doi.org/10.1002/vnl.730020305
https://doi.org/10.1002/vnl.730020305
Publikováno v:
Journal of Polymer Science: Polymer Chemistry Edition. 14:2479-2495
A series of polyethylenes (PE), reduced poly(vinyl chlorides), and precursor poly(vinyl chloride) (PVC) systems were studied by pyrolysis–gas chromatography (PGC) and by pyrolysis–hydrogenation–gas chromatography (PHGC). The branch content of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39ef200b4f6c2d13f6eb432b38c6ce86
https://doi.org/10.1002/pol.1976.170141014
https://doi.org/10.1002/pol.1976.170141014
Autor:
Kent B. Abbås, Pawel Zadorecki
Publikováno v:
Polymer Composites. 6:162-167
The properties of cellulose-reinforced nylon-6 block copolymers were studied. Composites were prepared by Reaction Injection Molding (RIM) of a nylon system in which one of the reactants contained cellulose fibers. Incorporation of cellulose fibers i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b283503adbb44a54003be8896d175b3f
https://doi.org/10.1002/pc.750060306
https://doi.org/10.1002/pc.750060306
Autor:
Kent B. Abbås
Publikováno v:
Journal of Macromolecular Science, Part B. 14:159-166
Recent work on the elucidation of the origin and extent of branching in poly(vinyl chloride) is briefly summarized.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b272690dae93ed84107dad9ad7fbcecb
https://doi.org/10.1080/00222347708212227
https://doi.org/10.1080/00222347708212227
Publikováno v:
European Polymer Journal. 14:361-367
An ultra-high molecular weight and narrow distribution polystyrene ( M w = 7.3 × 10 6 , Mw/Mn = 1.13) was dissolved in a wide range of solvents. Potential degradation by freezing was studied as a function of solvent type, concentration, cooling rate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::25ca6575e803277dbbaa0825ad915145
https://doi.org/10.1016/0014-3057(78)90122-2
https://doi.org/10.1016/0014-3057(78)90122-2
Autor:
Kent B. Abbås
Publikováno v:
Polymer. 22:836-841
Bisphenol A polycarbonate was repeatedly extruded in a capillary rheometer at high, constant shear stresses (0.15–0.95 MPa) and at temperatures between 275 and 320°C. Changes in molecular weight and molecular weight distribution were determined. P
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::090ad592c54461d67f66a5f32b2a69d2
https://doi.org/10.1016/0032-3861(81)90025-2
https://doi.org/10.1016/0032-3861(81)90025-2
Autor:
Kent B. Abbås, Robert L. Laurence
Publikováno v:
Journal of Polymer Science: Polymer Chemistry Edition. 13:1889-1899
A kinetic model for the formation of polyene sequences during the thermal degradation of poly(vinyl chloride) in nitrogen is proposed. The model includes a propagation step of the “zipper” type and termination by crosslinking. The initiation can
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::917c7310f71fa98228f30ea8db5aa140
https://doi.org/10.1002/pol.1975.170130813
https://doi.org/10.1002/pol.1975.170130813
Autor:
Erling M. Sörvik, Kent B. Abbås
Publikováno v:
Journal of Applied Polymer Science. 20:2395-2406
A set of poly(vinyl chloride) samples were investigated with respect to their thermal stability. The dehydrochlorination rates were measured in nitrogen at 190°C by use of a very accurate, conductometric method. For all polymers studied, a significa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e70b0dccf16d02c79b9edb20ecfb145
https://doi.org/10.1002/app.1976.070200909
https://doi.org/10.1002/app.1976.070200909