Semi-Crystalline Polyesters Based on a Novel Renewable Building Block

Autor: CE Cor Koning, Jacco van Haveren, Pieter Eduard, Shanmugam Thiyagarajan, Célia Fonseca Guerra, Daan S. van Es, Jing Wu, Artur Rozanski, Lidia Jasinska-Walc, Bart A. J. Noordover
Přispěvatelé: Theoretical Chemistry, Organic Chemistry, AIMMS, Chemical Engineering and Chemistry
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: Macromolecules, 45, 5069-5080. American Chemical Society
Macromolecules 45 (2012) 12
Macromolecules, 45(12), 5069-5080. American Chemical Society
Wu, J, Eduard, P, Thiyagarajan, S, Jasinska-Walc, L, Rozanski, A, Fonseca Guerra, C, Noordover, B A J, van Haveren, J, van Es, D S & Koning, C E 2012, ' Semi-Crystalline Polyesters Based on a Novel Renewable Building Block ', Macromolecules, vol. 45, pp. 5069-5080 . https://doi.org/10.1021/ma300782h
Macromolecules, 45(12), 5069-5080
ISSN: 0024-9297
Popis: Isohexides, like e.g. isosorbide, are well-known carbohydrate-based rigid diols which are capable of dramatically increasing the glass transition temperature of polyesters. However, their relatively low reactivity has thus far hampered large-scale industrial applications in the polymer field. Recently, with the aim to increase reactivity while at the same time retain rigidity, we have developed a new isoidide dicarboxylic acid (IIDCA) by transforming the secondary hydroxyls into carboxylate functionalities. Here we report the first polymers based on IIDCA and linear α,ω-diols. The novel polyesters were obtained via melt polymerization and exhibited weight-average molecular weights in the range of 13 000-34 000 g/mol and polydispersities close to 2.0. NMR analyses showed that the exo-exo configuration of the isoidide dicarboxylate units was preserved during synthesis. Both differential scanning calorimetry and wide-angle X-ray diffraction analyses showed that the IIDCA polyesters are semicrystalline materials. A systematic study on structure-thermal properties relations among relevant series of polyesters, such as isomeric polymers based on isoidide, revealed several interesting differences in melting and glass transition temperatures, which are thought to be related to variations in chain packing and free volume. © 2012 American Chemical Society.
Databáze: OpenAIRE