Block copolypeptides. 2. Viscoelastic properties.

T Hayashi; J M Anderson; P A Hiltner

doi:10.1021/ma60056a023

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Block copolypeptides. 2. Viscoelastic properties.

T Hayashi·J M Anderson·P A Hiltner

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Abstract

The solid state structure of block copolypeptides of gamma-benzyl L-glutamate (G) and L-leucine (L) case from preferential solvents for G has been investigated by dynamic mechanical and wide angle x-ray diffraction techniques. The WAXD patterns show overlapping reflections characteristic of the individual homopolymers. Further evidence for a phase separated morphology is provided by the viscoelastic behavior. Representation of the dynamic elastic modulus in terms of the equivalent mechanical model suggests that phase separation of GLG-type polymers occurs with G as the matrix phase. In the reverse case, LGL-type polymers, it appears that some phase inversion has taken place.

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Elasticity Glutamates Leucine Mathematics Peptides Protein Binding Protein Conformation Viscosity X-Ray Diffraction Journal Article Research Support, U.S. Gov't, Non-P.H.S.

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T Hayashi, J M Anderson, P A Hiltner. Block copolypeptides. 2. Viscoelastic properties.. https://doi.org/10.1021/ma60056a023

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