Study of structural and thermal properties of electron beam irradiated polymethylmethacrylate/bisphenol-A-polycarbonate blends

2012 ◽  
Vol 125 (4) ◽  
pp. 3184-3190 ◽  
Author(s):  
M. M. Magida
Keyword(s):  
Electron Beam ◽  
Thermal Properties ◽  
Bisphenol A ◽  
Bisphenol A Polycarbonate

Probing the Chemistry and Spectroscopy of Radiation-Sensitive Polymers by Parallel-Detection EELS

1990 ◽  
Vol 48 (2) ◽  
pp. 34-35
Author(s):  
E. G. Rightor ◽  
G. P. Young
Keyword(s):  
Electron Beam ◽  
Bisphenol A ◽  
Energy Loss ◽  
Parallel Detection ◽  
Commercial Grade ◽  
Incident Electron Beam ◽  
Ptfe Sample ◽  
Spectroscopic Information ◽  
Edge Features ◽  
Electron Energy Loss

Investigation of neat polymers by TEM is often thwarted by their sensitivity to the incident electron beam, which also limits the usefulness of chemical and spectroscopic information available by electron energy loss spectroscopy (EELS) for these materials. However, parallel-detection EELS systems allow reduced radiation damage, due to their far greater efficiency, thereby promoting their use to obtain this information for polymers. This is evident in qualitative identification of beam sensitive components in polymer blends and detailed investigations of near-edge features of homopolymers.Spectra were obtained for a poly(bisphenol-A carbonate) (BPAC) blend containing poly(tetrafluoroethylene) (PTFE) using a parallel-EELS and a serial-EELS (Gatan 666, 607) for comparison. A series of homopolymers was also examined using parallel-EELS on a JEOL 2000FX TEM employing a LaB6 filament at 100 kV. Pure homopolymers were obtained from Scientific Polymer Products. The PTFE sample was commercial grade. Polymers were microtomed on a Reichert-Jung Ultracut E and placed on holey carbon grids.

Model of the selective laser sintering of bisphenol-A polycarbonate

1993 ◽  
Vol 32 (10) ◽  
pp. 2305-2317 ◽  
Author(s):  
J. Christian Nelson ◽  
Samuel Xue ◽  
Joel W. Barlow ◽  
Joseph J. Beaman ◽  
Harris L. Marcus ◽  
...  
Keyword(s):  
Bisphenol A ◽  
Selective Laser Sintering ◽  
Laser Sintering ◽  
Bisphenol A Polycarbonate

The influence of electron beam irradiation on the mechanical and thermal properties of Poly (ether-block-amide) blends

2014 ◽  
Vol 94 ◽  
pp. 26-30 ◽  
Author(s):  
Kieran A. Murray ◽  
James E. Kennedy ◽  
Brian McEvoy ◽  
Olivier Vrain ◽  
Damien Ryan ◽  
...  
Keyword(s):  
Electron Beam ◽  
Thermal Properties ◽  
Electron Beam Irradiation ◽  
Mechanical And Thermal Properties ◽  
Beam Irradiation
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