ISSN:
0006-3525
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
γ-(l)-Menthyl L- and D-glutamates were prepared by a fusion reaction of N-phthalyl-L- and D-glutamic anhydrides with l-menthol, followed by hydrazinolysis. The monomers were polymerized to poly[γ-(l)-menthyl L- and D-glutamates] by the N-carboxyanhydride method. These polymers were soluble in many organic solvents, such as ethyl ether, chloroform, tetrahydrofuran, and n-hexane. From the results obtained by a study of the infrared absorption spectra, the x-ray photographs, the optical rotatory dispersions and the circular dichroisms, poly[γ-(l)-menthyl L-glutamate] was found to be a right-handed α-helix in the solid state and in solution. Similarly, poly[γ-(l)-menthyl D-glutamate] was a left-handed α-helix. The helix-coil transition of these polymers was observed in the vicinity of 40% dichloroacetic acid in a chloroform-dichloroacetic acid mixture.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/bip.1970.360090105
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