TY - JOUR
T1 - The Use of Nanoclays to Modify the Morphology and Photoluminescence of Electrospun Poly(9-vinylcarbazole)/Poly[2-methoxy-5-(2′-ethylhexyloxy)-1,4-phenylenevinylene] Blend Fibers
AU - Balderas, Jesús Uriel
AU - Falcony, Ciro
AU - Jiménez, Gloria Lesly
AU - Garzón, Amanda Stephanie
AU - Mondragón, Margarita
N1 - Publisher Copyright:
© 2015, The Minerals, Metals & Materials Society.
PY - 2015/4
Y1 - 2015/4
N2 - The morphology and photoluminescence properties of electrospun poly(9-vinylcarbazole) (PVK)/poly[2-methoxy-5-(2′-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) blend fibers, which were loaded with either halloysite clay nanotubes (HNTs) or an organically modified montmorillonite (OMMT) clay, were studied by scanning electron microscopy, transmission electron microscopy, and fluorescence spectroscopy. A concentration range of 0–30 wt.% was used for the clays, while the MEH-PPV concentration was fixed at 0.5 wt.%. Both clays, especially the OMMT clay, increased the phase separation of the components in the electrospun PVK/MEH-PPV blend fibers. This was attributed to their selective localization on the polymer phases. The HNTs and OMMT clay also increased energy transfer to the lowest energy states of MEH-PPV generated during electrospinning, and modified the amount of the partially overlapping conformation of carbazole groups (p-PVK) that constrained the aggregation of the PVK chains. These changes resulted in an increased emission from p-PVK, which varied depending on the type and concentration of the clay.
AB - The morphology and photoluminescence properties of electrospun poly(9-vinylcarbazole) (PVK)/poly[2-methoxy-5-(2′-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) blend fibers, which were loaded with either halloysite clay nanotubes (HNTs) or an organically modified montmorillonite (OMMT) clay, were studied by scanning electron microscopy, transmission electron microscopy, and fluorescence spectroscopy. A concentration range of 0–30 wt.% was used for the clays, while the MEH-PPV concentration was fixed at 0.5 wt.%. Both clays, especially the OMMT clay, increased the phase separation of the components in the electrospun PVK/MEH-PPV blend fibers. This was attributed to their selective localization on the polymer phases. The HNTs and OMMT clay also increased energy transfer to the lowest energy states of MEH-PPV generated during electrospinning, and modified the amount of the partially overlapping conformation of carbazole groups (p-PVK) that constrained the aggregation of the PVK chains. These changes resulted in an increased emission from p-PVK, which varied depending on the type and concentration of the clay.
KW - Nanoclays
KW - conjugated polymer
KW - electrospinning
KW - luminescence
UR - http://www.scopus.com/inward/record.url?scp=84925464814&partnerID=8YFLogxK
U2 - 10.1007/s11664-015-3633-8
DO - 10.1007/s11664-015-3633-8
M3 - Artículo
SN - 0361-5235
VL - 44
SP - 1238
EP - 1244
JO - Journal of Electronic Materials
JF - Journal of Electronic Materials
IS - 4
ER -