2026-10-13T03:29:56Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/58062023-01-26T09:07:14Zcom_10259_4313com_10259_5086com_10259_2604col_10259_4314
Repositorio Institucional de la Universidad de Burgos
author
Trigo López, Miriam
author
Reglero Ruiz, José A.
author
Peredo Guzmán, Patricia D.
author
Peredo, Patricia D.
author
Mendía Jalón, Aránzazu
author
Muñoz Santamaría, María Asunción
author
García García, Félix Clemente
author
García Pérez, José Miguel
2021-06-16T12:13:51Z
2021-06-16T12:13:51Z
2021-06
http://hdl.handle.net/10259/5806
10.3390/ma14112804
1996-1944
We describe the synthesis and characterization of three novel aromatic diamines containing oxyethylene sequences of different lengths. These diamines were polymerized using the low-temperature solution polycondensation method with isophthaloyl chloride (IPC), terepthaloyl chloride (TPC), [1,1’-biphenyl]-4,4’-dicarbonyl dichloride (BDC), and 4,4′-oxybis(benzoyl chloride) (OBE), obtaining twelve poly(ether amide)s with short segments of polydisperse polyethyleneoxide (PEO) sequences in the polymer backbone. These polymers show reasonably high molecular mass materials (Mw > 12,000), and the relationship between their structure and properties has been carefully studied. Compared with conventional polyamides containing monodisperse PEO sequences, the polydispersity of the PEO segments within the structural units exerts a significant influence on the crystallinity, flexibility, solubility, and the thermal properties of the polymers. For instance, the all-para oriented polyamides (TPCP-A), with an average number of 8.2 ethylenoxide units per structural unit can be transformed conventionally (Tm = 259 °C) in comparison with thermally untransformable polymer with 2 ethylenoxide units (Tm = 425 °C)
eng
Atribución 4.0 Internacional
condensation monomers
aromatic polyamides
polyethyleneoxide
segmented block copolymers
Segmented-block poly(ether amide)s containing flexible polydisperse polyethyleneoxide sequences and rigid aromatic amide moieties
info:eu-repo/semantics/article
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URL
https://riubu.ubu.es/bitstream/10259/5806/1/Trigo-materials_2021.pdf
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2988851
application/pdf
Trigo-materials_2021.pdf