Chain End Modification of Polylactide Biomaterials and Investigation of Their Polymer-Polymer Interaction

Kan, Kai; Ajiro, Hiroharu; Akashi, Mitsuru

doi:10.1295/koron.2017-0059

Cited by 1 publication

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“…The development of biobased polymers is essential for establishing a sustainable green society. Conventional biobased aliphatic polymers such as polyesters and polycarbonates have unsatisfactory thermal and mechanical properties, although several attempts have been made to improve these properties. − One of the most effective strategies in this regard is to incorporate an aromatic component into the polymer backbone. ,,− …”

Section: Introductionmentioning

confidence: 99%

Morphology-Controlled Self-Assembly and Synthesis of Biopolyimide Particles from 4-Amino-l-phenylalanine

et al. 2020

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Self-assembling polyimides (PIs) having diketopiperazine (DKP) components were synthesized by polycondensation of a 4-amino-L-phenylalanine (4APhe) dimer, an aromatic diamine newly designed in this study. The amino acid-derived PIs showed high thermal resistance, with a 10% weight loss temperature (T d10 ) of 432 °C at the maximum, and did not show any glass transition below the thermal decomposition temperature. The poly(amic acid) (PAA) precursors formed nanospheres upon reprecipitation over dimethylacetamide into water. The nanospheres were then added to solvents with different polarities and sonicated to induce deformation of the spherical forms into spiky balls, flakes, or rods. The PAA particle morphologies were retained in the PIs after the two-step imidization. Finally, the PI particles with self-assembling DKP moieties were formed, and their morphologies were fine-tuned using different mixed solvents.

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Section: Introductionmentioning

confidence: 99%

Morphology-Controlled Self-Assembly and Synthesis of Biopolyimide Particles from 4-Amino-l-phenylalanine

et al. 2020

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Chain End Modification of Polylactide Biomaterials and Investigation of Their Polymer-Polymer Interaction

Abstract: * 2 奈良先端科学技術大学院大学物質創成科学研究科 (〠 630-0192 生駒市高山町 8916-5) * 3 大阪大学大学院生命機能研究科 (〠 565-0871 吹田市山田丘 1-3) * 4 (独) 科学技術振興機構さきがけ (〠 332-0012 川口市本町 4-1-8)

Cited by 1 publication

References 51 publications

Morphology-Controlled Self-Assembly and Synthesis of Biopolyimide Particles from 4-Amino-l-phenylalanine

Morphology-Controlled Self-Assembly and Synthesis of Biopolyimide Particles from 4-Amino-l-phenylalanine

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Chain End Modification of Polylactide Biomaterials and Investigation of Their Polymer-Polymer Interaction

Abstract: * 2 奈良先端科学技術大学院大学物質創成科学研究科 (〠 630-0192 生駒市高山町 8916-5) * 3 大阪大学大学院生命機能研究科 (〠 565-0871 吹田市山田 丘 1-3) * 4 (独) 科学技術振興機構さきがけ (〠 332-0012 川口市本町 4-1-8)

Cited by 1 publication

References 51 publications

Morphology-Controlled Self-Assembly and Synthesis of Biopolyimide Particles from 4-Amino-l-phenylalanine

Morphology-Controlled Self-Assembly and Synthesis of Biopolyimide Particles from 4-Amino-l-phenylalanine

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Abstract: * 2 奈良先端科学技術大学院大学物質創成科学研究科 (〠 630-0192 生駒市高山町 8916-5) * 3 大阪大学大学院生命機能研究科 (〠 565-0871 吹田市山田丘 1-3) * 4 (独) 科学技術振興機構さきがけ (〠 332-0012 川口市本町 4-1-8)