Issue 9, 2024

Universality in interior periodic assembly of banded d-(−)-poly(3-hydroxybutyrate) justified with the iridescence test

Abstract

The grating structure and periodic assembly in D-(−)-poly(3-hydroxybutyrate) (PHB), or simply poly(3-hydroxybutyrate), with diluent-modulated optical regularity are analyzed using microscopy techniques coupled with a unique 3D interior dissection technique. The top-surface valley band is a result of impingement of branching crystals evolving from normal-oriented main lamellar stalks, and the top-surface band is a result of the protruding lamellar stalks. The 3D dissection shows direct experimental proof of discontinuous interfaces between the successive bands, which are created by periodic impingement of neighboring lamellar bundles growing in the normal direction from the substrate. The iridescence phenomenon from the PHB periodic bands can be attributed to the grating-assembly structures with cross-bar pitches tuned to a suitable range by combination of diluents and temperature of growth, whose function resembles those seen in nature's iridescent crystals.

Graphical abstract: Universality in interior periodic assembly of banded d-(−)-poly(3-hydroxybutyrate) justified with the iridescence test

Supplementary files

Article information

Article type
Paper
Submitted
07 Dec 2023
Accepted
28 Jan 2024
First published
31 Jan 2024
This article is Open Access
Creative Commons BY-NC license

CrystEngComm, 2024,26, 1209-1218

Universality in interior periodic assembly of banded D-(−)-poly(3-hydroxybutyrate) justified with the iridescence test

T. Chuang, S. Nagarajan, C. Su, L. Lee and E. M. Woo, CrystEngComm, 2024, 26, 1209 DOI: 10.1039/D3CE01241G

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. You can use material from this article in other publications, without requesting further permission from the RSC, provided that the correct acknowledgement is given and it is not used for commercial purposes.

To request permission to reproduce material from this article in a commercial publication, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party commercial publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements