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Can I read Low molecular weight poly(imide‐amide)s obtained by copolycondensation of 4,4′‐methylenedi(phenyl isocyanate), trimellitic anhydride and benzoic acid in N ‐methyl‐2‐pyrrolidone, 3. Absolute number‐average molecular weights and glass transition temperatures on EtoBox?
Low molecular weight poly(imide‐amide)s obtained by copolycondensation of 4,4′‐methylenedi(phenyl isocyanate), trimellitic anhydride and benzoic acid in N ‐methyl‐2‐pyrrolidone, 3. Absolute number‐average molecular weights and glass transition temperatures by Nathalie Sintès‐Zydowicz; Quang Tho Pham; Jacque Dubois; Philippe Michaud is a Materials Science article available to read on EtoBox.
What is Low molecular weight poly(imide‐amide)s obtained by copolycondensation of 4,4′‐methylenedi(phenyl isocyanate), trimellitic anhydride and benzoic acid in N ‐methyl‐2‐pyrrolidone, 3. Absolute number‐average molecular weights and glass transition temperatures about?
## Abstract In depth study of low molecular weight poly(imide‐amide)s (PIA) obtained by copolycondensation of 4,4′‐methylenedi(phenyl isocyanate), trimellitic anhydride and benzoic acid by ^1^H and ^13^C NMR spectroscopy and size‐exclusion chromatography allows the determination of their absolute number‐average molecular weights __M̄__~n, abs~. Viscosimetric measurements reveal that, dissolved in __N__‐methyl‐2‐pyrrolidone, these low molecular weight PIAs should be semi‐rigid because of the presence of very short crystalline chains. By using the semi‐empirical Fox‐Flory relation, the extrapolated glass transition temperature equals 300°C for high molecular weight.
Who reads Low molecular weight poly(imide‐amide)s obtained by copolycondensation of 4,4′‐methylenedi(phenyl isocyanate), trimellitic anhydride and benzoic acid in N ‐methyl‐2‐pyrrolidone, 3. Absolute number‐average molecular weights and glass transition temperatures?
It is typically read by researchers, students, and practitioners in Materials Science.
- Author
- Nathalie Sintès‐Zydowicz; Quang Tho Pham; Jacque Dubois; Philippe Michaud
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Ltd.; Wiley (ISSN 1022-1352)
- Published
- 1997
- Language
- EN
- Field
- Materials Science (Physical Sciences)
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