Issue 75, 2017, Issue in Progress

Structured growth from sheaf-like nuclei to highly asymmetric morphology in poly(nonamethylene terephthalate)

Abstract

Thorough microscopy analyses are done on dissecting 3D interiors of poly(nonamethylene terephthalate) (PNT) banded spherulites. Growth of a specific type (Type-I) of banded spherulites is initiated from highly elongated sheaf-like nuclei, with asymmetrically grown lamellae packed as a multi-shell structure, leading to resemblance of a dual-face spheroid. Top-surface bands are characterized with discrete/unconnected dots of crystals aligned as zig-zag circles, which correspond to interior layered lamellae ends surfacing to top. Thus, the banded spherulites display not only inter-band discontinuity, but also discontinuity among the dotted crystals aligned on the top-surface ridges. 3D analysis exhibits that the banded spherulites possess a Janus-face morphology of compounded shell-and-kink lamellae assembly with dual discontinuities.

Graphical abstract: Structured growth from sheaf-like nuclei to highly asymmetric morphology in poly(nonamethylene terephthalate)

Supplementary files

Article information

Article type
Paper
Submitted
19 Aug 2017
Accepted
29 Sep 2017
First published
11 Oct 2017
This article is Open Access
Creative Commons BY license

RSC Adv., 2017,7, 47614-47618

Structured growth from sheaf-like nuclei to highly asymmetric morphology in poly(nonamethylene terephthalate)

C. H. Tu, E. M. Woo and G. Lugito, RSC Adv., 2017, 7, 47614 DOI: 10.1039/C7RA09170B

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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