Enhanced Electrocatalytic Performance for Methanol Oxidation via Insertion of Ruthenium Oxide Particles into Pt and Polyaniline-Poly(Acrylic Acid-co-Maleic Acid) Composite Electrode

2013 ◽  
Vol 50 (2) ◽  
pp. 1997-2000 ◽  
Author(s):  
C.-W. Kuo ◽  
Z.-Y. Kuo ◽  
T.-Y. Wu ◽  
J.-Y. Chen ◽  
W.-B. Li
Keyword(s):  
Acrylic Acid ◽  
Methanol Oxidation ◽  
Maleic Acid ◽  
Composite Electrode ◽  
Ruthenium Oxide ◽  
Electrocatalytic Performance ◽  
Oxide Particles ◽  
Poly Acrylic Acid

Dual-Charge Nanofiber Mats Made of Chitosan(CS)/Poly(Vinyl Alcohol) (PVA) and Poly-(Acrylic Acid-Co-Maleic Acid) (PAMA)/PVA

2019 ◽  
Vol 819 ◽  
pp. 145-150
Author(s):  
Thapakorn Chareonying ◽  
Junnasir M. Sakilan ◽  
Theerasak Rojanarata ◽  
Prasopchai Patrojanasophon ◽  
Prasert Akkaramongkolporn ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Maleic Acid ◽  
Vinyl Alcohol ◽  
Electrospinning Process ◽  
Poly Vinyl Alcohol ◽  
Water Capacity ◽  
Ft Ir ◽  
Nanofiber Mats ◽  
Positively Charged ◽  
Poly Acrylic Acid

Nanofibers have been widely used for tissue engineering. Using charged polymers for the preparation of nanofibers can be useful for the loading of substances or macromolecules. Dual charge nanofiber mats are expected to be able to immobilize both positively charged and negatively charged substances in one versatile nanofiber mat. The purpose of this study was to prepare and characterize dual-charge nanofibers generated from poly (vinyl alcohol) (PVA)/poly-(acrylic acid-co-maleic acid) (PAMA) and chitosan (CS)/PVA. The polymer solutions of PAMA/PVA (1:1.63 w/w) and CS/PVA (1:2.33 w/w) were electrospun to form the nanofibers using dual-jet electrospinning process. The obtained dual-charge nanofibers were thermally crosslinked by leaving the nanofibers in the oven at 110-130 °C for 0.5, 1, 3, 5 h. The appearance of the nanofiber mat was characterized by a scanning electron microscope (SEM), and the diameter of nanofibers were determined by an image analysis software (J-micro vision®). The percentage water insolubilization and FT-IR spectra were also determined. The dual-size nanofiber mats with smooth and bead-free fibers were obtained. The diameter of the PAMA/PVA and CS/PVA fibers was 574.54 ± 142.98 nm and 225.69 ± 41.92 nm, respectively. The desirable temperature and time for the crosslink of the dual-charge nanofiber mats was 130 °C for 1 h which could provide a high insolubilization with water capacity of 93.22 ± 2.23%.

scholarly journals Highly crystalline vanadium phosphate catalysts synthesized using poly(acrylic acid-co-maleic acid) as a structure directing agent

2016 ◽  
Vol 6 (9) ◽  
pp. 2910-2917 ◽  
Author(s):  
Mosaed Alhumaimess ◽  
Zhongjie Lin ◽  
Nicholas F. Dummer ◽  
Stuart H. Taylor ◽  
Graham J. Hutchings ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Maleic Acid ◽  
Vanadium Phosphate ◽  
Structure Directing Agent ◽  
Vanadium Phosphates ◽  
P Addition ◽  
Poly Acrylic Acid

Addition of poly(acrylic acid-co-maleic acid) (PAAMA) during the synthesis of vanadium phosphates changes the morphology and improves the catalyst performance.

The fluorescence quenching and aggregation induced emission behaviour of silver nanoclusters labelled on poly(acrylic acid-co-maleic acid)

2018 ◽  
Vol 42 (5) ◽  
pp. 3459-3464 ◽  
Author(s):  
Ping-Chien Wu ◽  
Chou-Yen Chen ◽  
Chih-Wei Chang
Keyword(s):  
Acrylic Acid ◽  
Fluorescence Quenching ◽  
Maleic Acid ◽  
Silver Nanoclusters ◽  
Aggregation Induced Emission ◽  
Poly Acrylic Acid

The P(AA-co-MA) AgNCs reveals fluorescence quenching and enhancement in the presence of GSH and DMSO, respectively.

Evaluation of Thermally Crosslinked Poly(Acrylic Acid-Co-Maleic Acid) (PAMA)/Poly(Vinyl Alcohol) (PVA) Microneedle Arrays

2019 ◽  
Vol 819 ◽  
pp. 45-50 ◽  
Author(s):  
Nway Nway Aung ◽  
Yin Yin Myat ◽  
Tanasait Ngawhirunpat ◽  
Theerasak Rojanarata ◽  
Prasopchai Patrojanasophon ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Maleic Acid ◽  
Vinyl Alcohol ◽  
Transdermal Drug Delivery ◽  
Poly Vinyl Alcohol ◽  
Optimal Conditions ◽  
Microneedle Arrays ◽  
First Time ◽  
Polymer Ratio ◽  
Poly Acrylic Acid

This study aimed to evaluate the optimal conditions for crosslinked of PAMA/PVA microneedle (MN) arrays. Poly (acrylic acid-co-maleic acid) (PAMA)/poly (vinyl alcohol) (PVA) MN arrays were fabricated for the first time using the micromolding technique. The PAMA/PVA MN arrays at the polymer ratio of 1:4 were sharp, homogenous and perfectly formed with an elegant appearance. The successfully crosslinking MN arrays were determined using FTIR and water insolubilization. The results showed that increasing the crosslinking temperature and time, the degree of crosslinking also improved, which results in a decline in water uptake. The optimal crosslinking condition for PAMA/PVA MN arrays was 130°C for 1 h. Moreover, the highest swelling was observed from crosslinked PAMA/PVA MN arrays at 90°C for 0.5 h. These studies suggest that the combination of PAMA and PVA for fabrication of MN arrays could have a great potential to develop both hydrogel and dissolving MN devices for transdermal drug delivery.

Aging effect of poly(vinyl alcohol) membranes crosslinked with poly(acrylic acid-co-maleic acid)

2005 ◽  
Vol 13 (2) ◽  
pp. 135-140 ◽  
Author(s):  
Ji Won Rhim ◽  
Ho Sang Hwang ◽  
Dae Sik Kim ◽  
Ho Bum Park ◽  
Chang Hyun Lee ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Maleic Acid ◽  
Vinyl Alcohol ◽  
Aging Effect ◽  
Poly Vinyl Alcohol ◽  
Poly Acrylic Acid

Dispersion of barium titanate with poly(acrylic acid-co-maleic acid) in aqueous media

2004 ◽  
Vol 30 (7) ◽  
pp. 1985-1988 ◽  
Author(s):  
Jianling Zhao ◽  
Xiaohui Wang ◽  
Zhilun Gui ◽  
Longtu Li
Keyword(s):  
Barium Titanate ◽  
Acrylic Acid ◽  
Maleic Acid ◽  
Aqueous Media ◽  
Poly Acrylic Acid
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