Functionalization and Thereafter Grafting with Lactic Acid to Synthesize Lignin-polylactic Acid Copolymer for Thin Film Preparation

Dutta, Koushik; Saikia, Ankumoni; Saikia, Binoy K.; Ajit, Singh

doi:10.1007/s10924-023-02825-x

J Polym Environ

2023

DOI: 10.1007/s10924-023-02825-x

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Functionalization and Thereafter Grafting with Lactic Acid to Synthesize Lignin-polylactic Acid Copolymer for Thin Film Preparation

Koushik Dutta

Ankumoni Saikia

Binoy K. Saikia

et al.

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Cited by 6 publications

References 48 publications

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Toward a Greener Bioeconomy: Synthesis and Characterization of Lignin–Polylactide Copolymers

Langletz,

Grande,

Viell

et al. 2023

Adv Energy and Sustain Res

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In the modern world, plastics have become indispensable. Due to their properties, they are used for a wide variety of applications ranging from packaging materials to textiles and medical technology. The vast majority of these plastics are made from finite fossil feedstocks that will need to be replaced in the long term to meet consumer demands in the future. Intensive research is being conducted into alternative bio‐based feedstocks to replace petroleum‐based plastics with more environmentally friendly variants. This includes polylactide, a polyester derived from lactic acid, which is mainly used as packaging material. In this work, star‐shaped copolymers consisting of polylactide and OrganoCat lignin with varying lignin loadings are synthesized using a “grafting‐from” approach directly from the lactide melt using a zinc‐based guanidine catalyst. This method proves to be efficient and copolymers can be produced after 30 min to three hours with high lactide conversions. Kinetic studies are performed to investigate the influence of different lignin loadings on the polymerization rate and 31P NMR experiments are used to analyze the functionalization of the lignin. Thermal analysis reveals an increase of the glass transition temperature and a higher thermal decomposition temperature with increasing lignin content.

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Toward a Greener Bioeconomy: Synthesis and Characterization of Lignin–Polylactide Copolymers

Langletz,

Grande,

Viell

et al. 2023

Adv Energy and Sustain Res

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Metal catalyst-free selective acetosyringone synthesis from rice straw lignin

Saikia,

Dutta,

Bora

et al. 2023

Environ Sci Pollut Res

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Recent advances, challenges, and opportunities in lignin valorization for value-Added chemicals, biofuels, and polymeric materials

Li,

Guan,

Xia

et al. 2024

Energy Conversion and Management

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Functionalization and Thereafter Grafting with Lactic Acid to Synthesize Lignin-polylactic Acid Copolymer for Thin Film Preparation

Cited by 6 publications

References 48 publications

Toward a Greener Bioeconomy: Synthesis and Characterization of Lignin–Polylactide Copolymers

Toward a Greener Bioeconomy: Synthesis and Characterization of Lignin–Polylactide Copolymers

Metal catalyst-free selective acetosyringone synthesis from rice straw lignin

Recent advances, challenges, and opportunities in lignin valorization for value-Added chemicals, biofuels, and polymeric materials

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