Toughening of Poly(l-lactide) with Methyl MQ Silicone Resin

Xiaoxu Shi, Zhize Chen, Yiqi Yang

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Poly(l-lactide) (PLLA)/Methyl MQ (M: mono-functional silicon-oxygen unit R3SiO1/2, abbreviated as M; Q: tetra-functional silicon-oxygen unit SiO2, abbreviated as Q) Silicone Resin (Me-MQ) blends were prepared via a simple solvent evaporation method at various Me-MQ loadings. PLLA is high in strength and modulus, but its applications are limited partly due to its inherent brittleness. It is difficult to keep both toughness and transparency for modified PLLA without compromising its tensile strength and biocompatibility. In this study, we used biocompatible Me-MQ to toughen PLLA at low loadings. The elongation at break of neat PLLA is 7.8%. Tensile test showed that the elongation at break of PLLA blends increased to 67.9% and 217.7% at the loadings of 1 and 2 wt% Me-MQ respectively, with no sacrifice of their strength. UV-vis test showed the light transmittance of the films at the loadings of 1 wt% Me-MQ is almost the same as neat PLLA.

Original languageEnglish (US)
Pages (from-to)243-248
Number of pages6
JournalEuropean Polymer Journal
Volume50
Issue number1
DOIs
StatePublished - Jan 1 2014

Fingerprint

silicone resins
Toughening
Silicones
Elongation
Silicon
Oxygen
Brittleness
Biocompatibility
Transparency
elongation
Toughness
Evaporation
Tensile strength
brittleness
biocompatibility
silicon
oxygen
toughness
tensile tests
tensile strength

Keywords

  • Methyl MQ silicone resin
  • Poly(l-lactide)
  • Toughness
  • Transparency

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

Cite this

Toughening of Poly(l-lactide) with Methyl MQ Silicone Resin. / Shi, Xiaoxu; Chen, Zhize; Yang, Yiqi.

In: European Polymer Journal, Vol. 50, No. 1, 01.01.2014, p. 243-248.

Research output: Contribution to journalArticle

Shi, Xiaoxu ; Chen, Zhize ; Yang, Yiqi. / Toughening of Poly(l-lactide) with Methyl MQ Silicone Resin. In: European Polymer Journal. 2014 ; Vol. 50, No. 1. pp. 243-248.
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