Alcyonarien-Sklerite aus dem Torton des Burgenlandes, - download pdf or read online

By Edith Kristan-Tollmann (auth.)

ISBN-10: 3662245876

ISBN-13: 9783662245873

ISBN-10: 366226739X

ISBN-13: 9783662267394

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Extra info for Alcyonarien-Sklerite aus dem Torton des Burgenlandes, Österreich

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Amino anhydrides [92] have also been claimed (81). TV-Acylazoles, where the azole group is an imidazole, ^N—R 2 C-|-0 [92] benzimidazole, pyrazole, 1,2,3-triazole, benzotriazole, or tetrazole, have also been described (82). Finally, a host of "miscellaneous" reagents are given in reference (222). Some examples are SOCl2/pyridine, C 6 H 5 P(0)Cl 2 /pyridine, CH3COCl/pyridine, P 2 O s /pyridine, (ClCH 2 CH 2 CO) 2 0/pyridine, and polyphosphoric acid/pyridine. It should be noted that many of these reagents also promote the cyclization of polyamic acids topoly(iminolactones) (29, 59, 386, 387, 470) as shown in Eq.

Resistance of film to heat and pressure. The combination of these characteristics makes the polymers useful in magnet wire coatings and insulating varnishes (140, 146, 233, 412, 413). In addition to their present use in these areas, poly(amide-imides) show promise in a variety of other applications including binder materials for com­ posite slot liners, sleeving for high-temperature electrical insulation applica­ tions, slot-sticks, and phase insulation (413). In one instance, an aliphatic polyamide containing imide groups was claimed to be useful in ink binders for flexographic inks (84).

T = 150°C per hour. (Reprinted from Freeman, et. , Polymer Engineering and Science, Vol. 9, No. ) a glass transition temperature of 390°C. Cross-linking or a more complete imidation were thought responsible for this phenomenon (182). Poly(amide-imides) display lower thermo-oxidative stability than polyimides (413). The stabilities of these materials were investigated by several workers (122, 581, 582). The mechanical behavior and weight loss data for several poly(amide-imides) derived from pyromellitic anhydride and a variety of amide-containing diamines are shown in the accompanying table (p.

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Alcyonarien-Sklerite aus dem Torton des Burgenlandes, Österreich by Edith Kristan-Tollmann (auth.)


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