One-Step Synthesis of Highly Efficient Oligo(phenylphosphonic Dihydroxypropyl Silicone Oil) Flame Retardant for Polycarbonate

A highly efficient flame retardant and smoke suppression oligomer, oligo(phenylphosphonic dihydroxypropyl silicone oil) (PPSO), was synthesized by a one-step reaction. The chemical structure of PPSO was confirmed by Fourier transform infrared (FTIR), 31P nuclear magnetic resonance (31P NMR), and 29Si nuclear magnetic resonance (29Si NMR). The flame-retardant effect of PPSO on the polycarbonate (PC) matrix was investigated by limiting oxygen index, UL-94 vertical burning test, and cone calorimetry, respectively. The results showed that PC/PPSO composites passed UL-94 V-0 rate testing with only 1.3 wt. % PPSO. Furthermore, the incorporation of PPSO can suppress the release of smoke. The flame-retardant mechanism was also investigated via thermogravimetric analysis-fourier transform infrared spectroscopy (TG-FTIR), field-emission scanning electronic microscopy (FE-SEM), X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy. From the result of pyrolysis gas and char residue, PPSO played a synergistic flame-retardant mechanism including the gas phase and the condensed phase.

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FOURIER TRANSFORM INFRARED AND 1H NUCLEAR MAGNETIC RESONANCE SPECTROSCOPIC FINDINGS OF SILICONE OIL REMOVED FROM EYES AND THE RELATIONSHIP OF EMULSIFICATION WITH RETINOTOMY AND GLAUCOMA

Retina ◽

10.1097/00006982-200504000-00013 ◽

2005 ◽

Vol 25 (3) ◽

pp. 332-338 ◽

Cited By ~ 6

Author(s):

HÜLYA GÜNGEL ◽

YUSUF MENCEOĞLU ◽

BURÇIN YILDIZ ◽

ÖZGE AKBULUT

Keyword(s):

Nuclear Magnetic Resonance ◽

Fourier Transform ◽

Magnetic Resonance ◽

Silicone Oil ◽

Fourier Transform Infrared ◽

1H Nuclear Magnetic Resonance ◽

Relationship Of ◽

The Relationship ◽

Nuclear Magnetic

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Fourier Transform Infrared and Solid State 13c Nuclear Magnetic Resonance Spectroscopic Characterization of Defatted Cottonseed Meal-Based Biochars

SSRN Electronic Journal ◽

10.2139/ssrn.3598083 ◽

2020 ◽

Author(s):

Zhongqi He ◽

Mingxin Guo ◽

Chanel Fortier ◽

Xiaoyan Cao ◽

Klaus Schmidt-Rohr

Keyword(s):

Nuclear Magnetic Resonance ◽

Fourier Transform ◽

Solid State ◽

Magnetic Resonance ◽

Cottonseed Meal ◽

Fourier Transform Infrared ◽

Spectroscopic Characterization ◽

13C Nuclear Magnetic Resonance ◽

Nuclear Magnetic

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Surface Spectroscopy of Environmental Particles by Fourier-Transform Infrared and Nuclear Magnetic Resonance Spectroscopy

Environmental Particles ◽

10.1201/9781351270809-1 ◽

2018 ◽

pp. 1-36

Author(s):

Clifford T. Johnston ◽

Garrison Sposito ◽

W. L. Earl

Keyword(s):

Nuclear Magnetic Resonance ◽

Fourier Transform ◽

Magnetic Resonance ◽

Magnetic Resonance Spectroscopy ◽

Nuclear Magnetic Resonance Spectroscopy ◽

Fourier Transform Infrared ◽

Resonance Spectroscopy ◽

Surface Spectroscopy ◽

Nuclear Magnetic

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Effect of Drug–Polymer Interactions through Hypromellose Acetate Succinate Substituents on the Physical Stability on Solid Dispersions Studied by Fourier-Transform Infrared and Solid-State Nuclear Magnetic Resonance

Molecular Pharmaceutics ◽

10.1021/acs.molpharmaceut.9b00301 ◽

2019 ◽

Vol 16 (6) ◽

pp. 2785-2794 ◽

Cited By ~ 9

Author(s):

Yuya Ishizuka ◽

Keisuke Ueda ◽

Hitomi Okada ◽

Junpei Takeda ◽

Masatoshi Karashima ◽

...

Keyword(s):

Nuclear Magnetic Resonance ◽

Fourier Transform ◽

Solid State ◽

Magnetic Resonance ◽

Solid Dispersions ◽

Physical Stability ◽

Fourier Transform Infrared ◽

Polymer Interactions ◽

Hypromellose Acetate Succinate ◽

Nuclear Magnetic

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Detection of Labile Conformations of Elastin’s Prolines by Solid-State Nuclear Magnetic Resonance and Fourier Transform Infrared Techniques

Biochemistry ◽

10.1021/acs.biochem.9b00414 ◽

2019 ◽

Vol 58 (37) ◽

pp. 3848-3860 ◽

Cited By ~ 1

Author(s):

Chester L. Dabalos ◽

Kosuke Ohgo ◽

Kristin K. Kumashiro

Keyword(s):

Nuclear Magnetic Resonance ◽

Fourier Transform ◽

Solid State ◽

Magnetic Resonance ◽

Fourier Transform Infrared ◽

Infrared Techniques ◽

Nuclear Magnetic

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Detection of Primary and Secondary Oxidation Products by Fourier Transform Infrared Spectroscopy (FTIR) and1H Nuclear Magnetic Resonance (NMR) in Sunflower Oil during Storage

Journal of Agricultural and Food Chemistry ◽

10.1021/jf071712c ◽

2007 ◽

Vol 55 (26) ◽

pp. 10729-10736 ◽

Cited By ~ 65

Author(s):

María D. Guillén ◽

Encarnación Goicoechea

Keyword(s):

Nuclear Magnetic Resonance ◽

Fourier Transform ◽

Infrared Spectroscopy ◽

Magnetic Resonance ◽

Fourier Transform Infrared Spectroscopy ◽

Sunflower Oil ◽

Fourier Transform Infrared ◽

Oxidation Products ◽

Secondary Oxidation ◽

Nuclear Magnetic

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Synthesis, Fourier transform infrared, nuclear magnetic resonance and thermal analysis of sodium and platinum complexes of 6-mercaptopurine

Journal of Molecular Structure ◽

10.1016/s0022-2860(00)00671-2 ◽

2001 ◽

Vol 559 (1-3) ◽

pp. 49-54 ◽

Cited By ~ 11

Author(s):

J Bariyanga ◽

A.S Luyt

Keyword(s):

Thermal Analysis ◽

Nuclear Magnetic Resonance ◽

Fourier Transform ◽

Magnetic Resonance ◽

Platinum Complexes ◽

Fourier Transform Infrared ◽

Nuclear Magnetic

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A Nuclear Magnetic Resonance and Fourier-Transform Infrared Spectroscopic Study of Lyophilized Umbilical Cord Blood Platelet Rich Plasma

Letters in Applied NanoBioScience ◽

10.33263/lianbs113.38543860 ◽

2021 ◽

Vol 11 (3) ◽

pp. 3854-3860

Keyword(s):

Nuclear Magnetic Resonance ◽

Fourier Transform ◽

Magnetic Resonance ◽

Cord Blood ◽

Umbilical Cord ◽

Umbilical Cord Blood ◽

Platelet Rich Plasma ◽

Fourier Transform Infrared ◽

Blood Platelet ◽

Nuclear Magnetic

Cord blood platelet-rich plasma is regarded as a potential therapeutic agent with wound healing and regenerative purposes. It has many advantages, such as availability, universal use, and being rich in regenerative tissue factors. To characterize the Umbilical Cord Blood Platelet Rich Plasma (UCB-PRP), umbilical cord blood is collected from healthy mothers in sterile vacutainers. Platelet-rich plasma was extracted after two sets of centrifugations and lyophilized using the freeze-drying method. The samples are subjected to physicochemical characterization using Nuclear Magnetic Resonance (NMR) and Fourier-Transform Infrared (FTIR) Spectroscopy. This translational approach provided evidence of clinical effectiveness for understanding physiology and pathophysiology at the molecular level. Accordingly, FTIR and NMR studies provided information on the structural stability of protein molecules present in UCB-PRP.

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Residual Hydrogen Determination in Perfluoropolyalkylethers Using Fourier Transform Infrared and Proton Nuclear Magnetic Resonance Spectroscopies

Applied Spectroscopy ◽

10.1366/0003702953965551 ◽

1995 ◽

Vol 49 (10) ◽

pp. 1474-1477 ◽

Cited By ~ 3

Author(s):

Jim Liang ◽

Mark Roselius ◽

David W. Johnson

Keyword(s):

Nuclear Magnetic Resonance ◽

Fourier Transform ◽

Magnetic Resonance ◽

Fourier Transform Infrared ◽

Proton Nuclear Magnetic Resonance ◽

Linear Calibration ◽

Standard Samples ◽

Residual Hydrogen ◽

Ft Ir ◽

Nuclear Magnetic

The residual hydrogen content of several perfluoropolyalkylether base fluids has been determined with the use of proton nuclear magnetic resonance (NMR) and Fourier transform infrared (FT-IR) spectroscopies. The analysis of standard samples gives a linear calibration curve for hydrogen concentrations between 0.5 and 500 ppm for both FT-IR and NMR. The two methods have similar detection limits of about 1 ppm. Analysis of identical samples of Krytox 143 AC and Krytox 143 AZ by both methods gives results which are in excellent agreement. The two methods also provide information about the chemical environment in which the hydrogen is located. In both of the Krytox samples, the hydrogen is located in CFH groups within the polymer chain.

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