Title:
|
Bio-based aromatic polyesters from a novel bicyclic diol derived from D-mannitol
|
Author:
|
Lavilla Aguilar, Cristina; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Alla Bedahnane, Abdelilah; García Martín, Maria de Gracia; Galbis Pérez, Juan Antonio; Muñoz Guerra, Sebastián
|
Other authors:
|
Universitat Politècnica de Catalunya. Departament d'Enginyeria Química; Universitat Politècnica de Catalunya. POL - Polímers Industrials Avançats i Biopolímers Tecnològics |
Abstract:
|
2,4:3,5-Di-O-methylene-D-mannitol, abbreviated as
Manx, is a D-mannitol-derived compound with the secondary hydroxyl
groups acetalized with formaldehyde. The bicyclic structure of Manx
consists of two fused 1,3-dioxane rings, with two primary hydroxyl
groups standing free for reaction. A homopolyester made of Manx and
dimethyl terephthalate as well as a set of copolyesters of poly(butylene
terephthalate) (PBT) in which 1,4-butanediol was replaced by Manx up
to 50% were synthesized and characterized. The polyesters had Mw in
the 30 000−52 000 g mol−1 range and a random microstructure and
were thermally stable up to nearly 370 °C. They displayed outstanding
high Tg with values from 55 to 137 °C which steadily increased with the
content in Manx. Copolyesters containing up to 40% of Manx were
semicrystalline and adopted the crystal structure of PBT. Their stress−
strain parameters were sensitively affected by the presence of
carbohydrate-based units with elongation at break decreasing but tensile strength and elastic moduli steadily increasing with
the degree of replacement. |
Abstract:
|
Peer Reviewed |
Subject(s):
|
-Àrees temàtiques de la UPC::Enginyeria química -Polyesters -Polièsters |
Rights:
|
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
Document type:
|
Article - Published version Article |
Published by:
|
American Chemical Society (ACS)
|
Share:
|
|