Three types of banded structures in highly birefringent poly(trimethylene terephthalate) spherulites

Graecia Lugito, Eamor M. Woo

研究成果: Article同行評審

20 引文 斯高帕斯(Scopus)

摘要

Poly(trimethylene terephthalate) (PTT), a highly birefringent aromatic polyester, has been utilized to understand the mechanisms of crystal assembly into diversified types of banded spherulites. PTT exhibits three main types of banded spherulites (i.e., concentric, single-spiral, and double-spiral) co-existing in sample films melt-crystallized at 165 °C, regardless of sample thickness. The three types differ in their banding structures, interference color distributions, and nuclei geometries (S-shape, Z-shape, or dot-shape). Core diameter, band spacing ratio, and height difference (Δz) around the core are the three key parameters of different banding patterns in PTT spherulites. Formation mechanism for three types of banded spherulites has been interpreted, and found to be highly correlated with the initial geometry shapes of their nuclei.

原文English
頁(從 - 到)1207-1216
頁數10
期刊Journal of Polymer Science, Part B: Polymer Physics
54
發行號13
DOIs
出版狀態Published - 2016 七月 1

All Science Journal Classification (ASJC) codes

  • 凝聚態物理學
  • 物理與理論化學
  • 聚合物和塑料
  • 材料化學

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