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@ARTICLE{Zhang:625357,
author = {Zhang, Pengju and Roth, Stephan and Mueller-Buschbaum,
Peter and He, Tian-Bai},
title = {{D}irect {O}bservation of {E}arly-{S}tage {P}olymer
{C}rystallization {D}riven by {S}urface {W}rinkling and
{C}ompressive {S}tress in {T}hin {F}ilms},
journal = {Chinese journal of polymer science},
volume = {43},
number = {2},
issn = {0256-7679},
address = {Heidelberg [u.a.]},
publisher = {Springer},
reportid = {PUBDB-2025-01114},
pages = {360 - 367},
year = {2025},
note = {Waiting for fulltext},
abstract = {The early stages of crystallization and occurrence of
surface wrinkling were investigated using
poly(butadiene)-block-poly(ε-caprolactone) with an ordered
lamellar structure. Direct evidence has demonstrated that
surface wrinkling precedes nucleation and crystal growth.
This study examined the relationship between surface
wrinkling, nucleation, and the formation of crystalline
supramolecular structures using atomic force microscopy
(AFM) and X-ray scattering measurements. Surface wrinkling
is attributed to curving induced by accumulated stresses,
including residual stress from the sample preparation and
thermal stress during cooling. These stresses cause
large-scale material flow and corresponding changes in the
molecular conformations, potentially reducing the nucleation
barrier. This hypothesis is supported by the rapid crystal
growth observed following the spread of surface wrinkles.
Additionally, the surface curving of the polymer thin film
creates local minima of the free energy, facilitating
nucleation. The nuclei subsequently grow into crystalline
supramolecular structures by incorporating polymer molecules
from the melt. This mechanism highlights the role of
localized structural inhomogeneity in the early stages of
crystallization and provides new insights into structure
formation processes.},
cin = {DOOR ; HAS-User / FS-SMA},
ddc = {670},
cid = {I:(DE-H253)HAS-User-20120731 / I:(DE-H253)FS-SMA-20220811},
pnm = {632 - Materials – Quantum, Complex and Functional
Materials (POF4-632) / 6G3 - PETRA III (DESY) (POF4-6G3)},
pid = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G3},
experiment = {EXP:(DE-H253)P-P03-20150101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:001401093700001},
doi = {10.1007/s10118-025-3264-3},
url = {https://bib-pubdb1.desy.de/record/625357},
}