Oppositely synchronized lamellar bending in poly(L-lactic acid) versus poly(D-lactic acid) blended with poly(1,4-butylene adipate)

Siti Nurkhamidah, Eamor Woo

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Lamellar bending habits, as influenced by molecular-chain chirality, in packing into dendritic spherulites with specific optical patterns are discussed using two model polymers of opposite chirality that are blended with a common polymer as examples: i) poly(l-lactic acid)/poly(butylene adipate) (PLLA/PBA) and ii) poly(d-lactic acid)/PBA (PDLA/PBA) blends. The bending habits in the spherulites of PLLA or PDLA blended with PBA are dictated by the chirality, specifically the counterclockwise and clockwise directions for the PLLA/PBA (50:50) and PDLA/PBA (50:50) blends, respectively. Straight lamellae in spiral lozenge crystals are packed with crystal aggregates of PLLA on top of the flat-on lamellae plates acting as a basal plane during crystallization at T c; spiral lozenge-crystal frameworks are surrounded by needle-like crystals resembling PBA crystals.

Original languageEnglish
Pages (from-to)978-987
Number of pages10
JournalMacromolecular Chemistry and Physics
Volume215
Issue number10
DOIs
Publication statusPublished - 2014 Jan 1

Fingerprint

lactic acid
butenes
Lactic acid
Lactic Acid
Chirality
Crystals
chirality
spherulites
crystals
habits
lamella
Polymers
molecular chains
polymers
Crystallization
needles
Needles
poly(lactic acid)
adipic acid
butylene

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

Cite this

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Oppositely synchronized lamellar bending in poly(L-lactic acid) versus poly(D-lactic acid) blended with poly(1,4-butylene adipate). / Nurkhamidah, Siti; Woo, Eamor.

In: Macromolecular Chemistry and Physics, Vol. 215, No. 10, 01.01.2014, p. 978-987.

Research output: Contribution to journalArticle

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