Stereochemical
Sequence Dictates Unimolecular Diblock
Copolymer Assembly
Version 2 2018-01-22, 18:48
Version 1 2018-01-19, 21:48
Posted on 2018-01-22 - 18:48
Deciphering
the significance of length, sequence, and stereochemistry
in block copolymer self-assembly remains an ongoing challenge. A dearth
of methods to access uniform block co-oligomers/polymers with precise
stereochemical sequences has precluded such studies. Here, we develop
iterative exponential growth methods for the synthesis of a small
library of unimolecular stereoisomeric diblock 32-mers. X-ray scattering
reveals that stereochemistry modulates the phase behavior of these
polymers, which we rationalize based on simulations carried out on
a theoretical model system. This work demonstrates that stereochemical
sequence can play a crucial role in unimolecular polymer self-assembly.
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Golder, Matthew
R.; Jiang, Yivan; Teichen, Paul E.; Nguyen, Hung V.-T.; Wang, Wencong; Milos, Nicole; et al. (2018). Stereochemical
Sequence Dictates Unimolecular Diblock
Copolymer Assembly. ACS Publications. Collection. https://doi.org/10.1021/jacs.7b12696
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AUTHORS (9)
MG
Matthew
R. Golder
YJ
Yivan Jiang
PT
Paul E. Teichen
HN
Hung V.-T. Nguyen
WW
Wencong Wang
NM
Nicole Milos
SF
Seth A. Freedman
AW
Adam P. Willard
JJ
Jeremiah A. Johnson
KEYWORDS
stereochemical sequencesstereochemistry modulatesunimolecular stereoisomeric diblock 32- mersblock copolymer self-assemblymodel systemunimolecular polymer self-assemblyStereochemical Sequence Dictates Unimolecular Diblock Copolymer Assembly Decipheringphase behaviorstereochemical sequencegrowth methods