Selective nucleation of chitin nanocrystals in the crystallization of poly(ε-caprolactone-b- -lactide) diblock copolymer composites

International Journal of Biological Macromolecules, Год журнала: 2025, Номер unknown, С. 140919 - 140919

Опубликована: Фев. 1, 2025

Язык: Английский

Regulating the Characteristic Networks of Biodegradable Poly(l-malic acid-ε-caprolactone) Shape-Memory Materials: From Plastics to Elastomers

Biomacromolecules, Год журнала: 2025, Номер unknown

Опубликована: Март 13, 2025

Developing new biodegradable polyesters with well-defined structures is of interest. We reported an attractive two-component aliphatic polyester-based thermoset, which was prepared via the esterification biomass-derived l-malic acid oligomers and three-arm poly(ε-caprolactone) (3a-PCL) triols. The chemical network formed ester bonding physical caused by crystallization a 3a-PCL arm chain coexist in competition two characteristic networks leads to negative correlation between degree covalent cross-linking crystallization; thereby, mechanical state thermosets can be easily tuned: from plastic elastomer state. Moreover, temperature melting point range 30 °C ∼ 50 −7 18 °C, respectively, are favorable for shape morphing as used shape-memory materials. This work also provides valuable information about tailoring thermal properties star-shaped thermosets.

Язык: Английский

Kinetic investigation and scale-up of bulk ring-opening copolymerization of L-lactide and ɛ-caprolactone in the presence of liquid tin(II) n-butoxide

Polymer Bulletin, Год журнала: 2025, Номер unknown

Опубликована: Апрель 2, 2025

Язык: Английский