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@ARTICLE{Chatzogiannakis:1048961,
author = {Chatzogiannakis, Dimitrios and Mygiakis, Emmanouil and
Dulle, Martin and Stiakakis, Emmanuel and Sakellariou,
Georgios and Glynos, Emmanouil},
title = {{M}acromolecular {A}rchitecture-{D}irected
{C}rystallization: {H}eterogeneous and {H}omogeneous
{C}rystallization in {M}iktoarm {S}tar {C}opolymers},
journal = {Macromolecules},
volume = {58},
number = {23},
issn = {0024-9297},
address = {Washington, DC},
publisher = {Soc.},
reportid = {FZJ-2025-05058},
pages = {12739–12746},
year = {2025},
abstract = {Understanding how polymer architecture affects
crystallization behavior is crucial for developing advanced
functional materials. In this study, we investigate a series
of miktoarm star-shaped copolymers composed of polystyrene
(PS) and poly(ethylene oxide) (PEO), with systematically
varied PEO content (18–86 wt $\%)$ and a fixed PS arm
length. Using differential scanning calorimetry (DSC),
polarized optical microscopy (POM), and small- and
wide-angle X-ray scattering (SAXS/WAXS), we elucidate how
intramolecular confinement within star-shaped architectures
influences crystallization. At high PEO content, a
core–shell morphology supports heterogeneous nucleation
and bulk-like spherulitic growth. As PEO content decreases,
homogeneous nucleation becomes dominant, and crystallinity
is significantly suppressed due to increased confinement and
reduced domain size. Our results demonstrate that molecular
architecture profoundly influences the nucleation mechanism,
crystallization temperature, and crystalline domain
structure in PS–PEO miktoarm copolymers, offering a
platform for tuning various properties of polymer
materials.},
cin = {IBI-4},
ddc = {540},
cid = {I:(DE-Juel1)IBI-4-20200312},
pnm = {5241 - Molecular Information Processing in Cellular Systems
(POF4-524)},
pid = {G:(DE-HGF)POF4-5241},
typ = {PUB:(DE-HGF)16},
doi = {10.1021/acs.macromol.5c02743},
url = {https://juser.fz-juelich.de/record/1048961},
}