Modification of Polylactide Nonwovens with Carbon Nanotubes and Ladder Poly(silsesquioxane)

Molecules. 2021 Mar 3;26(5):1353. doi: 10.3390/molecules26051353.

Abstract

Electrospun nonwovens of poly(L-lactide) (PLLA) modified with multiwall carbon nanotubes (MWCNT) and linear ladder-like poly(silsesquioxane) with methoxycarbonyl side groups (LPSQ-COOMe) were obtained. MWCNT and LPSQ-COOMe were added to the polymer solution before the electrospinning. In addition, nonwovens of PLLA grafted to modified MWCNT were electrospun. All modified nonwovens exhibited higher tensile strength than the neat PLA nonwoven. The addition of 10 wt.% of LPSQ-COOMe and 0.1 wt.% of MWCNT to PLLA increased the tensile strength of the nonwovens 2.4 times, improving also the elongation at the maximum stress.

Keywords: MWCNT; electrospinning; linear ladder-like poly(silsesquioxane); polylactide nonwovens; reinforced fibers.

MeSH terms

  • Biocompatible Materials / chemistry*
  • Materials Testing
  • Nanocomposites / chemistry*
  • Nanotubes, Carbon / chemistry*
  • Organosilicon Compounds / chemistry*
  • Polyesters / chemistry*
  • Polymers / chemistry*
  • Tensile Strength

Substances

  • Biocompatible Materials
  • Nanotubes, Carbon
  • Organosilicon Compounds
  • Polyesters
  • Polymers
  • poly(lactide)