authors |
Nolasco, MM; Araujo, CF; Thiyagarajan, S; Rudic, S; Vaz, PD; Silvestre, AJD; Ribeiro-Claro, PJA; Sousa, AF |
nationality |
International |
journal |
MACROMOLECULES |
keywords |
POLY(ETHYLENE 2,5-FURANDICARBOXYLATE); CRYSTAL-STRUCTURE; ACID; POLYESTER; TOSCA; COPOLYESTERS; MOBILITY |
abstract |
The biobased polyester poly(ethylene 2,4-furanoate) (2,4-PEF) is a potentially interesting yet insufficiently studied polymer whose resistance to crystallization fundamentally stems from the asymmetric nature of the 2,4-furandicarboxylic acid monomer. A combination of vibrational spectroscopy (infrared, Raman and inelastic neutron scattering) and ab initio calculations has been used to assess the conformational and regiochemistry preferences of 2,4-PEF. The latter polymerizes following a random distribution of monomer orientation, thereby rendering the formation of periodic interchain C-H center dot center dot center dot O contacts wholly unfeasible and ultimately favoring the formation of randomly coiled chains based on gauche-ethylene glycol segments. In the absence of C-H center dot center dot center dot O stabilization, the ordered crystalline arrangement is disfavored and polymer chains-adopting several quasi isoenergetic structures-prefer to solidify into an amorphous mess. |
publisher |
AMER CHEMICAL SOC |
issn |
0024-9297 |
isbn |
1520-5835 |
year published |
2020 |
volume |
53 |
issue |
4 |
beginning page |
1380 |
ending page |
1387 |
digital object identifier (doi) |
10.1021/acs.macromol.9b02449 |
web of science category |
Polymer Science |
subject category |
Polymer Science |
unique article identifier |
WOS:000517351100027
|
ciceco authors
impact metrics
journal analysis (jcr 2019):
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journal impact factor |
5.918 |
5 year journal impact factor |
5.654 |
category normalized journal impact factor percentile |
92.697 |
dimensions (citation analysis):
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altmetrics (social interaction):
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