Biomimetically Structured Lamellae Assembly in Periodic Banding of Poly(ethylene adipate) Crystals

E. M. Woo; Kai Cheng Yen; Yu Ting Yeh; Lai Yen Wang

doi:10.1021/acs.macromol.8b00549

Biomimetically Structured Lamellae Assembly in Periodic Banding of Poly(ethylene adipate) Crystals

E. M. Woo, Kai Cheng Yen, Yu Ting Yeh, Lai Yen Wang

Department of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

29 Citations (Scopus)

Abstract

Nature tends to assemble hierarchical structures in similar ways to achieve compactness and functions. This work probes the interior lamellae assembly of crystalline spherulites of poly(ethylene adipate) (PEA) with striking birefringence patterns versus some known biological structures for optical color diffraction. Three-dimensional dissecting onto interior lamellar structures of spherulites in poly(ethylene adipate) (PEA) in bulk forms crystallized at 28 ± 3 °C were studied in correlation with thin-film forms. Interior morphology in bulk PEA samples revealed periodic hemisphere or arc-shaped layers resembling corrugate boards with liner-flute medium alteration. Interior spherulites clearly expose that the lamellae within the intralayer are kebabs (plates) in the radial direction while the interlayer region are thin sheaths (fibrils) composed of cilia-like lamellae in the tangential direction. The interior repetitive lamellar assembly of PEA banded spherulites in displaying periodic optical birefringence patterns is proven to highly resemble those in many biological structures for iridescence light interference.

Original language	English
Pages (from-to)	3845-3854
Number of pages	10
Journal	Macromolecules
Volume	51
Issue number	10
DOIs	https://doi.org/10.1021/acs.macromol.8b00549
Publication status	Published - 2018 May 22

All Science Journal Classification (ASJC) codes

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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10.1021/acs.macromol.8b00549

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title = "Biomimetically Structured Lamellae Assembly in Periodic Banding of Poly(ethylene adipate) Crystals",

abstract = "Nature tends to assemble hierarchical structures in similar ways to achieve compactness and functions. This work probes the interior lamellae assembly of crystalline spherulites of poly(ethylene adipate) (PEA) with striking birefringence patterns versus some known biological structures for optical color diffraction. Three-dimensional dissecting onto interior lamellar structures of spherulites in poly(ethylene adipate) (PEA) in bulk forms crystallized at 28 ± 3 °C were studied in correlation with thin-film forms. Interior morphology in bulk PEA samples revealed periodic hemisphere or arc-shaped layers resembling corrugate boards with liner-flute medium alteration. Interior spherulites clearly expose that the lamellae within the intralayer are kebabs (plates) in the radial direction while the interlayer region are thin sheaths (fibrils) composed of cilia-like lamellae in the tangential direction. The interior repetitive lamellar assembly of PEA banded spherulites in displaying periodic optical birefringence patterns is proven to highly resemble those in many biological structures for iridescence light interference.",

author = "Woo, {E. M.} and Yen, {Kai Cheng} and Yeh, {Yu Ting} and Wang, {Lai Yen}",

note = "Funding Information: This work has been financially supported by a basic research grant (MOST 105-2221-E-006-246-MY3) for three consecutive years from Taiwan Ministry of Science and Technology (MOST), to which the authors express their gratitude. A portion of the data (WAXD and SAXS) were obtained while coauthor K. C. Yen did a short-term visit/training with Prof. Kohji Tashiro{\textquoteright}s laboratory at Department of Future Industry-oriented Basic Science and Materials, Toyota Technological Institute, Nagoya, Japan, to whom authors expressed gratitude for hosting and training her hands-on experiences as part of her doctoral program at NCKU as well as courtesy granted by Prof. K. Tashiro for using WAXD and SAXS instrument to perform characterization on PEA.",

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N1 - Funding Information: This work has been financially supported by a basic research grant (MOST 105-2221-E-006-246-MY3) for three consecutive years from Taiwan Ministry of Science and Technology (MOST), to which the authors express their gratitude. A portion of the data (WAXD and SAXS) were obtained while coauthor K. C. Yen did a short-term visit/training with Prof. Kohji Tashiro’s laboratory at Department of Future Industry-oriented Basic Science and Materials, Toyota Technological Institute, Nagoya, Japan, to whom authors expressed gratitude for hosting and training her hands-on experiences as part of her doctoral program at NCKU as well as courtesy granted by Prof. K. Tashiro for using WAXD and SAXS instrument to perform characterization on PEA.

PY - 2018/5/22

Y1 - 2018/5/22

N2 - Nature tends to assemble hierarchical structures in similar ways to achieve compactness and functions. This work probes the interior lamellae assembly of crystalline spherulites of poly(ethylene adipate) (PEA) with striking birefringence patterns versus some known biological structures for optical color diffraction. Three-dimensional dissecting onto interior lamellar structures of spherulites in poly(ethylene adipate) (PEA) in bulk forms crystallized at 28 ± 3 °C were studied in correlation with thin-film forms. Interior morphology in bulk PEA samples revealed periodic hemisphere or arc-shaped layers resembling corrugate boards with liner-flute medium alteration. Interior spherulites clearly expose that the lamellae within the intralayer are kebabs (plates) in the radial direction while the interlayer region are thin sheaths (fibrils) composed of cilia-like lamellae in the tangential direction. The interior repetitive lamellar assembly of PEA banded spherulites in displaying periodic optical birefringence patterns is proven to highly resemble those in many biological structures for iridescence light interference.

AB - Nature tends to assemble hierarchical structures in similar ways to achieve compactness and functions. This work probes the interior lamellae assembly of crystalline spherulites of poly(ethylene adipate) (PEA) with striking birefringence patterns versus some known biological structures for optical color diffraction. Three-dimensional dissecting onto interior lamellar structures of spherulites in poly(ethylene adipate) (PEA) in bulk forms crystallized at 28 ± 3 °C were studied in correlation with thin-film forms. Interior morphology in bulk PEA samples revealed periodic hemisphere or arc-shaped layers resembling corrugate boards with liner-flute medium alteration. Interior spherulites clearly expose that the lamellae within the intralayer are kebabs (plates) in the radial direction while the interlayer region are thin sheaths (fibrils) composed of cilia-like lamellae in the tangential direction. The interior repetitive lamellar assembly of PEA banded spherulites in displaying periodic optical birefringence patterns is proven to highly resemble those in many biological structures for iridescence light interference.

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Biomimetically Structured Lamellae Assembly in Periodic Banding of Poly(ethylene adipate) Crystals

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