ISSN:
0006-3525
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The polytripeptides poly(glu(OEt)-gly-gly) and poly(glu(OEt)-glu(OEt)-gly) have been synthesized and characterized using infrared linear dichroism, ultraviolet circular dichroism spectroscopy, and electron microscopy. Both polymers have been obtained in a cross β conformation with antiparallel chains, however, there appear to be significant differences in the stability of this conformation for the two polymers. Poly(glu(OEt)-gly-gly) has also been shown to exist in a 31 polyglycine II type helix in aqueous solution whereas films cast from this solution appear to be random. Finally this same polymer can be obtained in either a random or an extended form trifluoroacetic acid depending on the nature of the substrate used for film casting.
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/bip.1972.360110709
