TY - JOUR
T1 - Morphological analyses evidencing corrugate-grating lamellae assembly in banded spherulites of Poly(ethylene adipate)
AU - Nagarajan, Selvaraj
AU - Woo, Eamor M.
N1 - Funding Information:
This work has been financially supported by a basic research grant for three consecutive years from Taiwan's Ministry of Science and Technology ( MOST-108-2221-E-006-055 and MOST 108-2221-E-006-055 ), to which the authors express their gratitude. S.Nagarajan is grateful to MOST Post Doc. fellowship from Taiwan government.
Funding Information:
This work has been financially supported by a basic research grant for three consecutive years from Taiwan's Ministry of Science and Technology(MOST-108-2221-E-006-055 and MOST 108-2221-E-006-055), to which the authors express their gratitude. S.Nagarajan is grateful to MOST Post Doc. fellowship from Taiwan government.
Publisher Copyright:
© 2020 Elsevier Ltd
PY - 2020/2/3
Y1 - 2020/2/3
N2 - The classical model of continuous helix-twist lamellae versus a novel corrugate-grating assembly in accounting for long-debated issues of periodic optical banding in poly(ethylene adipate) (PEA) polymer spherulites is critically assessed, by comparing and checking against a series of scientific evidence based on experimental data of scanning electron microscopy (SEM), ultrathin microbeam small-angle & wide-angle X-ray scattering (SAXS/WAXD), and optical microscopy. Analyses show that grating-structured model fits perfectly with all results. The novel proposition of grating-structured lamellae with a crossbar pitch fits perfectly with the experimental optical band spacing, and the interior morphology dissection is fully supported by the literature-reported microbeam X-ray data.
AB - The classical model of continuous helix-twist lamellae versus a novel corrugate-grating assembly in accounting for long-debated issues of periodic optical banding in poly(ethylene adipate) (PEA) polymer spherulites is critically assessed, by comparing and checking against a series of scientific evidence based on experimental data of scanning electron microscopy (SEM), ultrathin microbeam small-angle & wide-angle X-ray scattering (SAXS/WAXD), and optical microscopy. Analyses show that grating-structured model fits perfectly with all results. The novel proposition of grating-structured lamellae with a crossbar pitch fits perfectly with the experimental optical band spacing, and the interior morphology dissection is fully supported by the literature-reported microbeam X-ray data.
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U2 - 10.1016/j.polymer.2019.122141
DO - 10.1016/j.polymer.2019.122141
M3 - Article
AN - SCOPUS:85077496651
SN - 0032-3861
VL - 188
JO - polymer
JF - polymer
M1 - 122141
ER -