Biobased furan-functionalized high-performance poly (aryl ether ketone) with low dielectric constant and low dielectric loss

Shi, Ludi; Bao, Feng; Liu, Yanxing; Cui, Jinze; Qiao, Yongna; Yu, Jiali; Liu, Huichao; Ji, Muwei; Zhu, Caizhen; Xu, Jian

doi:10.1016/j.ceja.2023.100530

Cited by 5 publications

(1 citation statement)

References 47 publications

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“…P(3,4-FMF- co -2,5-HF) ( C = 6) had the lowest molecular weight and the highest T d‑max‑2 , indicating the presence of a high heteroaromatic segment in this product. This underscores the role of incorporating rigid components into the polymer’s main chain, a well-known strategy for enhancing thermal stability. − On the other hand, a consistent decrease in the melting temperature ( T m ) was observed as the chain length of the aliphatic linear diol increased. This decrease in T m can be attributed to the increasing chain flexibility and enhanced mobility resulting from longer aliphatic chains .…”

Section: Resultsmentioning

confidence: 87%

Enzymatic Synthesis of Copolyesters with the Heteroaromatic Diol 3,4-Bis(hydroxymethyl)furan and Isomeric Dimethyl Furandicarboxylate Substitutions

Silvianti,

Maniar,

Agostinho

et al. 2024

Biomacromolecules

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Polyesters from furandicarboxylic acid derivatives, i.e., dimethyl 2,5-furandicarboxylate (2,5-DMFDCA) and 2,4-DMFDCA, show interesting properties among bio-based polymers. Another potential heteroaromatic monomer, 3,4-bis-(hydroxymethyl)furan (3,4-BHMF), is often overlooked but holds promise for biopolymer synthesis. Cleaning and greening synthetic procedures, i.e., enzymatic polymerization, offer sustainable pathways. This study explores the Candida antarctica lipase B (CALB)-catalyzed copolymerization of 3,4-BHMF with furan dicarboxylate isomers and aliphatic diols. The furanic copolyesters (co-FPEs) with higher polymerization degrees are obtained using 2,4-isomer, indicating CALB's preference. Material analysis revealed semicrystalline properties in all synthesized 2,5-FDCA-based co-FPEs, with multiple melting temperatures (T m ) from 53 to 124 °C and a glass-transition temperature (T g ) of 9−10 °C. 2,4-FDCA-based co-FPEs showed multiple T m from 43 to 61 °C and T g of −14 to 12 °C; one of them was amorphous. In addition, all co-FPEs showed a two-step decomposition profile, indicating aliphatic and semiaromatic segments in the polymer chains.

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