Aromatic polyesters based on bisphenol-A for liquid insulating systems: A synthetic approach

2004 ◽  
Vol 95 (3) ◽  
pp. 606-614 ◽  
Author(s):  
M. A. Shenoy ◽  
E. A. Pereira ◽  
P. F. Parikh
Keyword(s):  
Bisphenol A ◽  
Synthetic Approach ◽  
Aromatic Polyesters

Promising bulk production of a potentially benign bisphenol A replacement from a hardwood lignin platform

2018 ◽  
Vol 20 (5) ◽  
pp. 1050-1058 ◽  
Author(s):  
S.-F. Koelewijn ◽  
C. Cooreman ◽  
T. Renders ◽  
C. Andecochea Saiz ◽  
S. Van den Bosch ◽  
...  
Keyword(s):  
Bisphenol A ◽  
Bulk Scale ◽  
Bulk Production ◽  
Aromatic Polyesters

A unique, bulk-scale lignin-to-chemicals valorisation chain converts economically feasible 4-n-propylsyringol into low-oestrogenic bisphenols suitable for aromatic polyesters.

Synthesis of Aromatic Polyesters with Pendent Carboxyl Groups from Diphenolic Acid, Bisphenol a and Isophthaloyl Chloride by Interfacial Polycondensation

2011 ◽  
Vol 239-242 ◽  
pp. 2616-2619 ◽  
Author(s):  
Ping Zhang ◽  
Lin Bo Wu ◽  
Bo Geng Li
Keyword(s):  
Bisphenol A ◽  
Hplc Analysis ◽  
Phase Transfer ◽  
Phase Transfer Catalyst ◽  
Polymerization Process ◽  
Carboxyl Groups ◽  
Interfacial Polycondensation ◽  
Isophthaloyl Chloride ◽  
Tetrabutylammonium Chloride ◽  
Aromatic Polyesters

Aromatic polyesters bearing pendent carboxyl functionalities were prepared by interfacial polycondensation of diphenolic acid, bisphenol A and isophthaloyl chloride with tetrabutylammonium chloride as phase transfer catalyst. The copolyester composition was confirmed with HPLC analysis. The polymerization process and composition of the copolyesters were examined by considering influences of reaction temperatures, time, ratio of feeds, agitation speeds.

Synthesis of aromatic polyesters based on bisphenol A and phthalic acids. A new preparative process

1991 ◽  
Vol 24 (19) ◽  
pp. 5269-5272 ◽  
Author(s):  
C. Berti ◽  
V. Bonora ◽  
F. Pilati ◽  
M. Fiorini
Keyword(s):  
Bisphenol A ◽  
Phthalic Acids ◽  
Preparative Process ◽  
Aromatic Polyesters

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.

Bisphenol A

2011 ◽  
pp. 053111130856
Author(s):  
Stephen Ritter
Keyword(s):  
Bisphenol A

A New Hazard From Bisphenol A?

2011 ◽  
pp. 062311292128
Author(s):  
Erika Gebel
Keyword(s):  
Bisphenol A
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