1H-NMR spectra were recorded at room temperature at 500 MHz (128 scans per analysis) on an Agilent VNMRS 500 spectrometer in CDCl3, using tetramethyl silane as an internal standard. 29Si-NMR spectra were recorded at room temperature using glass tubes at 500 MHz (256 scans; relax time of 30 s) on an Agilent VNMRS 500 spectrometer in CDCl3, without tetramethyl silane as an internal standard. Gel permeation chromatography (GPC) measurements were performed on a TOSOH EcoSEC GPC system equipped with an auto sampler system, a temperature-controlled pump, a column oven, a refractive index (RI) detector, a purge and degasser unit, and a TSKgel superhZ2000, 4.6 mm ID × 15 cm × 2 cm column. Tetrahydrofuran was used as an eluent at a flow rate of 1.0 mL.min−1 at 40 °C. The refractive index detector was calibrated with polystyrene standards, having narrow molecular weight distributions. The data were analyzed using Eco-SEC analysis software. The Fourier transform infrared (FTIR) spectroscopy measurements were recorded on a PerkinElmer FTIR Spectrum One spectrometer. Viscosimetry experiments were conducted at room temperature via Ubbelohde Apparatus SI Analytics Typ 501 01/0a Appr. Nr. 1068985. 5.
Ecosec gpc system
Manufactured by Tosoh
Sourced in United States
The EcoSEC GPC system is a gel permeation chromatography (GPC) instrument designed and manufactured by Tosoh. The core function of the EcoSEC GPC system is to analyze the molecular weight distribution and related properties of polymer samples.
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Lab products found in correlation
Vnmrs 500 spectrometer, by Agilent Technologies (3 mentions)
Diamond dsc, by PerkinElmer (3 mentions)
Spectrum one ftir spectrometer, by PerkinElmer (2 mentions)
Uv 1601 double beam spectrometer, by Shimadzu (1 mentions)
Ls55 spectrometer, by PerkinElmer (1 mentions)
Uv 1601 spectrometer, by Shimadzu (1 mentions)
Vnmrs 500 mhz, by Agilent Technologies (1 mentions)
Diamond ta tga, by PerkinElmer (1 mentions)
5 protocols using ecosec gpc system
1
Comprehensive Characterization of Polymer Samples
2
Characterization of Polymeric Materials by NMR and TEM
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1H NMR spectra were recorded at room temperature at 500 MHz on an Agilent VNMRS 500 spectrometer. Gel permeation chromatography (GPC) measurements were performed on a TOSOH EcoSEC GPC system equipped with an auto sampler system, a temperature-controlled pump, a column oven, a refractive index (RI) detector, a purge and degasser unit and a TSKgel superhZ2000, 4.6 mm ID × 15 cm × 2cm column. Tetrahydrofuran was used as an eluent at a flow rate of 1.0 mL/min at 40 °C. The refractive index detector was calibrated with polystyrene standards having narrow molecular-weight distributions. The data were analyzed using Eco-SEC analysis software. A Hitachi HT7700 (TEM) with EXALENS (120 kV) working at a high-resolution (HR) mode was used to obtain transmission electron microscopy (TEM) images, high-angle annular dark field (HAADF) scanning transmission microscope (STEM) images and the associated EDS elemental mapping images.
3
Characterization of Polymer Materials Using GPC, UV-Vis, NMR, and DSC
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Gel permeation chromatography (GPC) measurements were performed on a TOSOH EcoSEC GPC system equipped with an autosampler system, a temperature-controlled pump, a column oven, a refractive index (RI) detector, a purge and degasser unit, and a TSK gel super hZ2000 4.6 mm ID × 15 cm × 2.0 cm column. Tetrahydrofuran (THF) was used as an eluent at a flow rate of 1.0 mL min−1 at 40 °C. A refractive index detector was calibrated with polystyrene standards having narrow molecular weight distributions. SEC (size-exclusion chromatography) data were analyzed using EcoSEC Analysis software. UV − vis spectra were recorded with a Shimadzu UV-1601 double-beam spectrometer equipped with a 50-W halogen lamp and a deuterium lamp which operate between 190 and 1100 nm. All fluorescence spectra were recorded using a PerkinElmer LS55 spectrometer performing between 200 and 900 nm wavelengths with a 10-nm slit width. The 1H NMR spectra of the products were measured at room temperature in Si(CH3)4 using a 500 MHz NMR (Agilent NMR System VNMRS). Differential scanning calorimetry (DSC) was performed on a PerkinElmer Diamond DSC from 30 to 300 °C with a heating rate of 10 °C min−1 under a nitrogen flow. A typical DSC sample was 2.0 − 5.0 mg in a 30-μL aluminum pan. The Fourier transform infrared (FT-IR) spectroscopy measurements were recorded at 16 scans using a PerkinElmer FT-IR.
4
Characterization of Polymer Materials
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1 H-NMR spectra were recorded at 500 MHz on an Agilent VNMRS 500 spectrometer at room temperature. Gel permeation chromatography (GPC) measurements were performed on a TOSOH EcoSEC GPC system equipped with an autosampler system, a temperature-controlled pump, a column oven, a refractive index (RI) detector, a purge and degasser unit and TSKgel superhZ2000, 4.6 mm ID x 15 cm x 2 cm column. Tetrahydrofuran was used as an eluent at flow rate of 1.0 mL/min at 40°C. Refractive index detector was calibrated with polystyrene standards having narrow molecular weight distributions. Data were analyzed using Eco-SEC Analysis software. Fourier transform infrared (FTIR) spectra were recorded on Perkin−Elmer FTIR Spectrum One spectrometer with an ATR Accessory and cadmium telluride detector. UV-visible spectra were recorded with a Shimadzu UV-1601 spectrometer. DSC measurements were performed on Perkin-Elmer Diamond DSC with a heating rate of 10°C min−1 under nitrogen flow.
5
Polymer Characterization by Spectroscopy and Chromatography
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1H NMR spectra were recorded using an Agilent VNMRS 500 MHz (Santa Clara, CA, USA), and chemical shifts were recorded in ppm using tetramethylsilane as an internal standard. FTIR spectra were recorded on a PerkinElmer FTIR Spectrum One spectrometer (MA, USA). Differential scanning calorimetry (DSC) was performed on PerkinElmer Diamond DSC (MA, USA) from 20 to 320 °C with a heating rate of 10 °C min−1 under nitrogen flow. Thermal gravimetric analysis (TGA) was performed on PerkinElmer Diamond TA/TGA with a heating rate of 10 °C min−1 under nitrogen flow. Molecular weights were determined by gel permeation chromatography (GPC). The measurements were performed on a TOSOH EcoSEC GPC system (MA, USA) equipped with an autosampler system, a temperature-controlled pump, a column oven, a refractive index (RI) detector, a purge and degasser unit, and a TSKgel SuperHZ2000, 4.6 mm i.d. × 15 cm × 2 cm column. Tetrahydrofuran was used as an eluent at a flow rate of 1.0 mL min−1 at 40 °C. The refractive index detector was calibrated with polystyrene standards which had narrow molecular weight distributions. Data were analyzed using EcoSEC analysis software.
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