The problem of intrinsic birefringence and chain conformation in polycarbonate from bisphenol-A

M. Pietralla; Th. Pieper

doi:10.1007/bf01410957

The problem of intrinsic birefringence and chain conformation in polycarbonate from bisphenol-A

Colloid & Polymer Science ◽

10.1007/bf01410957 ◽

1990 ◽

Vol 268 (9) ◽

pp. 797-805 ◽

Cited By ~ 7

Author(s):

M. Pietralla ◽

Th. Pieper

Keyword(s):

Bisphenol A ◽

Chain Conformation ◽

Intrinsic Birefringence

Download Full-text

An experimental determination of the local chain conformation of bisphenol A polycarbonate

Macromolecules ◽

10.1021/ma00214a027 ◽

1990 ◽

Vol 23 (12) ◽

pp. 3193-3194 ◽

Cited By ~ 20

Author(s):

P. Mark Henrichs ◽

V. A. Nicely

Keyword(s):

Bisphenol A ◽

Experimental Determination ◽

Chain Conformation ◽

Bisphenol A Polycarbonate

Download Full-text

Intrinsic birefringence of amorphous poly(bisphenol-A carbonate)

Journal of Applied Polymer Science ◽

10.1002/app.1986.070320129 ◽

1986 ◽

Vol 32 (1) ◽

pp. 3263-3275 ◽

Cited By ~ 14

Author(s):

Maan-Shii S. Wu

Keyword(s):

Bisphenol A ◽

Intrinsic Birefringence

Download Full-text

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

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s042482010013376x ◽

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.

Download Full-text