Synthesis of PDLLA/PLLA-bentonite nanocomposite through sonication

Sitompul, Johnner P.; Setyawan, Daru; Kim, Daniel Young Joon; Lee, Hyung Woo

doi:10.1063/1.4945534

Cited by 5 publications

(1 citation statement)

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“…The inclusion of PHB in the middle of the block provided more elastomeric nature (i.e., solid-like behavior), whereas the rheological properties of PLLA-PDLLA-PDLA and PLLA-PDLLA-PLLA blocks were comparable to those of pure PLLA, PLDA or their blends. Sitompul et al, prepared poly(D,L-lactic acid)/poly(L-lactic acid) bentonite nanocomposites (PDLLA/PLLA-bentonite) [149]. PDLLA was synthesized using the direct polycondensation method under vacuum and ZnO as the catalyst.…”

Section: Synthesis Of Blends Copolymers and Composites Using Pdllamentioning

confidence: 99%

Polymers Based on PLA from Synthesis Using D,L-Lactic Acid (or Racemic Lactide) and Some Biomedical Applications: A Short Review

et al. 2022

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Poly(lactic acid) (PLA) is an important polymer that is based on renewable biomass resources. Because of environmental issues, more renewable sources for polymers synthesis have been sought for industrial purposes. In this sense, cheaper monomers should be used to facilitate better utilization of less valuable chemicals and therefore granting more sustainable processes. Some points are raised about the need to study the total degradability of any PLA, which may require specific composting conditions (e.g., temperature, type of microorganism, adequate humidity and aerobic environment). Polymerization processes to produce PLA are presented with an emphasis on D,L-lactic acid (or rac-lactide) as the reactant monomer. The syntheses involving homogeneous and heterogeneous catalytic processes to produce poly(D,L-Lactic acid) (PDLLA) are also addressed. Additionally, the production of blends, copolymers, and composites with PDLLA are also presented exemplifying different preparation methods. Some general applications of these materials mostly dedicated to the biomedical area over the last 10–15 years will be pointed out.

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Section: Synthesis Of Blends Copolymers and Composites Using Pdllamentioning

confidence: 99%