Synthesis of sago starch laurate in densified carbon dioxide | Zendy

Muljana Henky | Zendy; Irene Cynthia | Zendy; Saptaputri Vina | Zendy; Arbita Ernest | Zendy; Sugih Asaf K. | Zendy; Heeres Hero J. | Zendy; Picchioni Francesco | Zendy

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Synthesis of sago starch laurate in densified carbon dioxide

Author(s) -

Muljana Henky,

Irene Cynthia,

Saptaputri Vina,

Arbita Ernest,

Sugih Asaf K.,

Heeres Hero J.,

Picchioni Francesco

Publication year - 2018

Publication title -

polymer engineering and science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.503

H-Index - 111

eISSN - 1548-2634

pISSN - 0032-3888

DOI - 10.1002/pen.24569

Subject(s) - starch , crystallinity , materials science , crystallization , chemical engineering , carbon dioxide , solvent , organic chemistry , composite material , chemistry , engineering

Fatty acid starch esters are potential candidates for novel biodegradable plastics. This work describes a systematic study on the synthesis of starch laurate using sago starch and vinyl laurate (VL) in densified CO 2 as a green solvent. The phase behavior of the CO 2 –VL system was investigated in a high pressure view cell and the critical point of the CO 2 ‐VL mixtures was shown to increase with temperature. Within the experimental window, sago starch laurate with a maximum degree of substitution (DS) of 0.97 is obtained. To the best of our knowledge, such high DS values have never been reported before for reactions in densified CO 2 . Moreover, the presence of laurate chains in the starch backbone has a profound influence on the degree of crystallinity, the melt and crystallization temperature, and the degradation temperature of the final products. POLYM. ENG. SCI., 58:291–299, 2018. © 2017 Society of Plastics Engineers

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