Thermodynamic confinement and α-helix persistence length in poly(γ-benzyl-L-glutamate)-b-poly(dimethyl siloxane)-b-poly(γ-benzyl-L-glutamate) triblock copolymers
Papadopoulos, P.; Floudas, G.; Schnell, I.; Lieberwirth, I.; Nguyen, T. Q.; Klok, H.-A.
2006

Abstract

The structure and the associated dynamics of a series of poly(?-benzyl-L-glutamate)-b-poly(dimethyl siloxane)-b-poly(?-benzyl-L-glutamate) (PBLG-b-PDMS-b-PBLG) triblock copolymers were investigated using small- and wide-angle X-ray scattering, NMR, transmission electron microscopy, and dielectric spectroscopy, respectively. The structural analysis revealed phase separation in the case of the longer blocks with defected ?-helical segments embedded within the block copolymer nanodomains. The ?-helical persistence length was found to depend on the degree of segregation; thermodynamic confinement and chain stretching results in the partial annihilation of helical defects. © 2006 American Chemical Society.

Details

Title Thermodynamic confinement and α-helix persistence length in poly(γ-benzyl-L-glutamate)-b-poly(dimethyl siloxane)-b-poly(γ-benzyl-L-glutamate) triblock copolymers
Author(s) Papadopoulos, P. ; Floudas, G. ; Schnell, I. ; Lieberwirth, I. ; Nguyen, T. Q. ; Klok, H.-A.
Published in Biomacromolecules
Volume 7
Issue 2
Pages 618-626
Date 2006
Note 15257797 (ISSN), Cited By (since 1996): 4, Export Date: 25 September 2007, Source: Scopus, CODEN: BOMAF, doi: 10.1021/bm050772t
DOI https://doi.org/10.1021/bm050772t
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Laboratories LP
Record Appears in Scientific production and competences > STI - School of Engineering > IMX - Institute of Materials > LP - Polymers Laboratory
Peer-reviewed publications
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Record creation date 2007-10-15