Synthesis and solid-state self-assembly of poly(ethylene glycol)-b-poly(γ-benzyl-l-glutamate)s and single-walled carbon nanotubes
Haoyu TangYing LingYong DengDonghui Zhang
Abstract
A series of coil-rod poly(ethylene glycol)-b-poly(γ-benzyl-l- glutamate)s (PEG-b-PBLGs) with α-helical conformations have been prepared from methoxypoly(ethylene glycol) amine (mPEG-NH2)-mediated ring-opening polymerization of γ-benzyl-l-glutamic acid based N-carboxylanhydride. PEG-b-PBLGs form a lamellar structure where PBLG segments pack into hexagonal arrays when frod is less than 0.28. Incorporation of single-walled carbon nanotubes (SWCNT) causes an increase of the d-spacing of both lamellar and hexagonal packing, suggesting that in the intercalation of SWCNTs into the PEG-b-PBLGs matrices, the SWCNTs are oriented normal to the lamellar interface. Copyright © 2014 Wiley Periodicals, Inc.
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