Synthesis Of Aromatic Amine Based Polyamides From Diisocyanates And Dicarboxylic Acids PDF Download

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Synthesis and Characterization of Thianthrene-Based Polyamides

Synthesis and Characterization of Thianthrene-Based Polyamides
Author: Randy A. Johnson
Publisher:
Total Pages: 31
Release: 1994
Genre:
ISBN:

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Thianthrene-2,7- and -2,8-dicarboxylic acids plus a synthetic intermediate, 4,4'-thiobis(3-chlorobenzoic acid), have been synthesized in good yields via nucleophilic aromatic substitution of Na2S on N, N-dimethyl-3,4- dichlorobenzamide. New aromatic polyamides having inherent viscosities of 1.29 to 2.39 dL/g were prepared by the direct polycondensation reaction of the dicarboxylic acids with 4,4'-oxydianiline and 1,4-phenylenediamine in N-methyl- 2-pyrrolidinone using triphenyl phosphite and pyridine. The fused-ring thianthrene-based polyamides were more soluble than analogous poly(thioether amide)s. Polymer films were cast from either DMF or DMAc/LiCl solutions and analyzed by FTIR and NMR. All prepared aramids displayed good thermal stability by DSC and TGA.


Papers Presented at the ... Meeting

Papers Presented at the ... Meeting
Author: American Chemical Society. Division of Polymer Chemistry
Publisher:
Total Pages: 724
Release: 1991
Genre: Chemistry
ISBN:

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Masters Theses in the Pure and Applied Sciences

Masters Theses in the Pure and Applied Sciences
Author: Wade H. Shafer
Publisher: Springer Science & Business Media
Total Pages: 430
Release: 2012-12-06
Genre: Science
ISBN: 1461573947

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Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Oata Analysis and Synthesis (CINOAS) * at Purdue. University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna tional publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 33 (thesis year 1988) a total of 13,273 theses titles from 23 Canadian and 1 85 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work. While Volume 33 reports theses submitted in 1988, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.


Book of Abstracts

Book of Abstracts
Author: American Chemical Society. Meeting
Publisher:
Total Pages: 1282
Release: 1987
Genre: Chemistry
ISBN:

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Synthetic Methods in Step-Growth Polymers

Synthetic Methods in Step-Growth Polymers
Author: Martin E. Rogers
Publisher: John Wiley & Sons
Total Pages: 619
Release: 2003-08-08
Genre: Technology & Engineering
ISBN: 0471461377

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Alles über die Stufenwachstums-Polymerisation - von Syntheseverfahren und Reinigungsmethoden bis zur Charakterisierung der Produkte - finden Sie in diesem Buch. - bietet einen Ausblick auf zukünftige Trends - mit historischen Informationen - erläutert die Klassifikation von Stufenwachstumspolymeren