Synthesis and properties of polyamides derived from anhydro- and dianhydroalditols

  • Thiem J
  • Bachmann F
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The three isomeric 1,4:3,6-dianhydroalditols with D-gluco- (2), D-manno- (11) and L-id0 (17) configuration and both 1,4-anhydroalditoIs with threo (22) and erythro (27) configuration were efficiently transformed into the corresponding diamino derivatives. Interfacial polycondensation of these chiral heterocyclic diamines with purchasable aromatic and aliphatic carboxylic acid chlorides gave polyamides 35 and 36a-f, 37, 38 and 39a-d. The polymers were characterized using IR and 'H/13C NMR spectroscopy. Number-average molecular weights were obtained from gel-permeation chromatography to be Mn = 5 000-25 000 corresponding to a number-average degree of polymerization up to Pn = 100. Inherent viscosities were measured, and differential scanning calorimetry gave information on the thermal properties of the polymers. Mp IIDA = 260-280 of 280-300

Author-supplied keywords

  • DSC
  • FT-IR
  • Melting temperature
  • Mitsunobu
  • Modification
  • NMR
  • Polyamide
  • SEC
  • TLC
  • acid chloride
  • elemental analysis
  • emulsion
  • interfacial polycondensation
  • isoidide
  • isomannide
  • isosorbide
  • polarimeter
  • synthesis

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  • Joachim Thiem

  • Frank Bachmann

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