Polyglycine
DOUGLAS G. GOLD AND WILMER G. MILLER
TRADE NAME:
Nylon 2CLASS: Polypeptides and proteins
MAJOR APPLICATIONS:
Serves as a model for various proteins.PROPERTIES OF SPECIAL INTEREST:
Two crystalline forms of polyglycine, I and II, havebeen observed. Form I is thought to have a
structure where the individual chainsexist in a helical conformation and form sheets stabilized by hydrogen bonds.
The individual chains in form II also have a helical conformation but are packed in
a hexagonal lattice with a three-dimensional array of hydrogen bonds.
SYNTHESIS: The synthesis is similar to that of poly(-benzyl-L-glutamate). (See alsothe entry on
Poly(-benzyl-L-glutamate) in this handbook.) It involves the conversionof the amino acid to the N-carboxyanhydride (NCA) monomer by reaction with
phosgene gas followed by polymerization of the NCA with an appropriate initiator
(e.g., triethylamine). Typical comonomers include other amino acid NCAs.
reference of this text that you can find good informtion about Nylon 2 in it is :
Polymer Data Handbook
. Copyright # 1999 by Oxford University Press, Inc. All rights reserved.
