Thermal gelation of Pluronic F-127 in ethylene glycol as non-aqueous solvent

Fahad, Muhammad; Gilbert, Marianne; Dickens, Phill

doi:10.1179/1743289811y.0000000027

Cited by 9 publications

(8 citation statements)

References 55 publications

(141 reference statements)

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“…A small peak observed at 2885 cm −1 indicates the CH aliphatic stretch of PF‐127 38 . The band appeared at 1150, 1246, 1389, and 1519 cm −1 associated with both PPO and PEO parts of PF‐127 39,40 . Besides, the band at 3649 cm −1 was responsible for the O‐H stretching vibration of PF‐127 41 .…”

Section: Resultsmentioning

confidence: 97%

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Photon management by scratch‐resistant antireflection coating for the efficiency enhancement of silicon solar cell

Swathi

Shanthi

Aishwarya³

et al. 2022

Intl J of Energy Research

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Antireflection coating (ARC) plays a crucial role in many solar and optical applications. ARC with mechanical robustness was developed to achieve more efficiency for the photovoltaic system cover glasses, by depositing porous Vinyltriethoxysilane/Pluronic F-127-based coating via spin coating technique.The coating shows maximum transparency around 93% in the visible region (400-800 nm). The mechanical robustness of the coating was analyzed using a pencil scratch test as per the ASTM standard D 3363-05 and it showed good stability against a 9H hardness pencil. The porous coating exhibited an enhanced conversion efficiency of 10.56% as compared to the bare glass of efficiency 9.71%; which validate the light-trapping ability of the coating in the visible region. Also, the coating sustains the efficiency of the solar cell even during dust exposure due to its good self-cleaning ability with water contact angle of 112 . It is also noteworthy that the prepared ARC shows UV stability under the UV-B lamp for 72 hours. The ARC developed in this study opens a promising approach to harvest renewable solar energy for photovoltaic systems.

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Section: Resultsmentioning

confidence: 97%

“…38 The band appeared at 1150, 1246, 1389, and 1519 cm À1 associated with both PPO and PEO parts of PF-127. 39,40 Besides, the band at 3649 cm À1 was responsible for the O-H stretching vibration of PF-127. 41 FTIR analysis indicates that PF-127 has bonded successfully with VTES molecules.…”

Section: Structural Analysismentioning

confidence: 99%

Photon management by scratch‐resistant antireflection coating for the efficiency enhancement of silicon solar cell

Swathi

Shanthi

Aishwarya³

et al. 2022

Intl J of Energy Research

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“…The endothermic peak at temperature 58 • C indicates that heat is absorbed to start melting of polymer (Pluronic F-127). 42 The exothermic peak at 190 • C shows the oxidative decomposition of linear polymer chain. 43 The second exothermic peak at 290 • C shows thermal decomposition of cross-linked three dimensional polymer network.…”

Section: Resultsmentioning

confidence: 99%

Effect of Pluronic F‐127 debinding temperature on the sintering and densification of alumina by direct ink writing

Majumder

Rupa

2022

Int J Applied Ceramic Tech

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Hydrogel-based alumina (Al 2 O 3 ) inks were prepared using Pluronic F-127 with 65 wt% of solid loading (Al 2 O 3 ). The Al 2 O 3 inks were deposited, and the freestanding samples were studied using TGA/DTA. Significant weight loss was observed between 180 and 360 • C. A two-stage hydrogel debinding process of Al 2 O 3 samples was carried out at 180 and 360 • C with holding times of 30, 60, 90, 120, and 150 min. The Al 2 O 3 samples were then sintered at 1600 • C. X-ray diffraction was used for the phase analysis of the alumina inks, and a scanning electron microscope was used microstructural analysis. Based on the TGA/DTA analysis, a two-stage debinding process was adopted. Significant effect of hydrogel debinding temperature was observed on the sintering and densification behavior of alumina. It was observed that the porosities in the alumina samples were increasing when the debinding time was increased from 30 to 150 min, with the debinding temperature at 180 and 360 • C. Moreover, the nature of the porosities was changing from closed porosities to interconnected porosities.

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“…Peaks that pertain to Pluronic F127 are visible within the PW‐PCPDTBSe nanoparticle and PW‐PCPDTBSe nanofiber spectra. The peaks at 1341, 1104, 1058, and 961 cm −1 correspond to the CH 2 wagging, COC antisym stretching, COC sym stretching and CH 2 rocking modes of Pluronic F127 . The remaining characteristic FTIR stretches for the PCPDTBSe polymer can be seen in the Supporting Information.…”

Section: Resultsmentioning

confidence: 99%

“…The peaks at 1341, 1104, 1058, and 961 cm 21 correspond to the CH 2 wagging, CAOAC antisym stretching, CAOAC sym stretching and CH 2 rocking modes of Pluronic F127. 48 The remaining characteristic FTIR stretches for the PCPDTBSe polymer can be seen in the Supporting Information.…”

Section: Uv-vis Ftir and Raman Spectroscopymentioning

confidence: 99%

Soft template synthesis of donor–acceptor conjugated polymer nanoparticles: Structural effects, stability, and photothermal studies

MacNeill

Graham

Levi‐Polyachenko

2014

J. Polym. Sci. Part A: Polym. Chem.

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Donor-acceptor conjugated polymer nanoparticles and nanofibers, based on Poly[4,4-bis(2-ethylhexyl)-cyclopenta[2,1-b;3,4-b']dithiophene-2,6-diyl-alt22,1,3-benzoselenadiazole-4,7-diyl] (PCPDTBSe), were synthesized using Pluronic F127 as a template. The nanomaterials were compared to previously reported PCPDTBSe nanoparticles, which were synthesized without the use of a template. Our goal was to improve on the aqueous stability and photothermal heating efficiency of the previously synthesized PCPDTBSe nanoparticles by decreasing their size and coating them with a biocompatible surfactant. The pluronic wrapped PCPDTBSe (PW-PCPDTBSe) nanoparticles (40-60 nm) showed excellent aqueous stability compared to the PW-PCPDTBSe nanofibers (d 5 20-60 nm, l 5 200-1000 nm) and previously synthesized PCPDTBSe nanoparticles (150 nm). Under stimulation from 800 nm near infrared light (3 W, 1 min), the PW-PCPDTBSe nanoparticles showed greater heat generation (DT 5 47 C) compared to bare PCPDTBSe nanoparticles and PW-PCPDTBSe nanofibers (DT 5 35 C for both). Cytotoxicity studies determined that both the PW-PCPDTBSe nanoparticles and PW-PCPDTBSe nanofibers displayed no significant toxicity toward either noncancerous small intestinal cells (FHs 74 Int) or colorectal cancer cells (CT26). Photothermal ablation studies confirmed that both the PW-PCPDTBSe nanoparticles and the PW-PCPDTBSe nanofibers can be used as localized photothermal agents to eradicate colorectal cancer cells due to their excellent ablation efficiency (>95% cell death at 15 mg/mL concentration).

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Thermal gelation of Pluronic F-127 in ethylene glycol as non-aqueous solvent

Cited by 9 publications

References 55 publications

Photon management by scratch‐resistant antireflection coating for the efficiency enhancement of silicon solar cell

Photon management by scratch‐resistant antireflection coating for the efficiency enhancement of silicon solar cell

Effect of Pluronic F‐127 debinding temperature on the sintering and densification of alumina by direct ink writing

Soft template synthesis of donor–acceptor conjugated polymer nanoparticles: Structural effects, stability, and photothermal studies

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