Reactive Grafting of Glycidyl Methacrylate onto Poly (Ethylene-1-Octene)

2011 ◽  
Vol 239-242 ◽  
pp. 1153-1158 ◽  
Author(s):  
Hui Ju Shao ◽  
Jian Bing Guo ◽  
Yang Jun Li ◽  
Jie Yu ◽  
Shu Hao Qin
Keyword(s):  
Fourier Transform ◽  
1H Nmr ◽  
Infrared Spectra ◽  
Glycidyl Methacrylate ◽  
Nmr Spectra ◽  
Fourier Transform Infrared ◽  
Dicumyl Peroxide ◽  
Melt Grafting ◽  
Ft Ir ◽  
Poly Ethylene

Poly (ethylene-1-octene) (POE) was functionalized to varying degrees with glycidyl methacrylate (GMA) by melt grafting processes. Fourier transform infrared spectra (FT-IR) and 1H NMR spectra confirmed that glycidyl methacrylate was successfully grafted onto the POE. When dicumyl peroxide(DCP)concentration was around 4‰ high graft degree was obtained. The data from GPC measure demonstrates that POE chains degraded during grafting process.

Effect of POE Grafting Degree and Compatibilization on the Properties of PBT/POE Blends

2012 ◽  
Vol 554-556 ◽  
pp. 2049-2053
Author(s):  
Jian Bing Guo ◽  
Kai Zhou Zhang
Keyword(s):  
Mechanical Properties ◽  
Fourier Transform ◽  
Maleic Anhydride ◽  
Infrared Spectra ◽  
Polybutylene Terephthalate ◽  
Melt Grafting ◽  
Phase Size ◽  
Ft Ir ◽  
Poly Ethylene ◽  
Grafting Degree

Poly (ethylene 1-octene) (POE) was functionalized to varying degrees with maleic anhydride (MA) by melt grafting processes. Fourier transform infrared spectra (FT-IR) confirmed that maleic anhydride was successfully grafted onto the POE. The POE-g-MAH elastomers were used to toughen Polybutylene terephthalate(PBT). The mechanical properties, morphology and the dispersal phase size were investigated. Results showed that the grafting degree strongly influenced the morphology, mechanical properties and the dispersal phase size. All results in this paper were consistent, and showed good interaction between POE and PBT, which was proven by the mechanical properties of blends.

Gas Chromatographic/Matrix Isolation/Fourier Transform Infrared Spectra of the Laterally Chlorinated Dibenzo-p-Dioxins and Dibenzofurans

1989 ◽  
Vol 43 (8) ◽  
pp. 1317-1324 ◽  
Author(s):  
Charles J. Wurrey ◽  
Billy J. Fairless ◽  
Harry E. Kimball
Keyword(s):  
Fourier Transform ◽  
Infrared Spectra ◽  
Matrix Isolation ◽  
Fourier Transform Infrared ◽  
Fourier Transform Infrared Spectra ◽  
Reference Quality ◽  
Ft Ir ◽  
Chlorinated Dioxins ◽  
Chromatographic Matrix ◽  
Ft Ir Spectroscopy

Reference-quality gas chromatographic/matrix isolation/Fourier transform infrared spectra have been recorded for the following fifteen compounds, which collectively are referred to as the “laterally” chlorinated dibenzo- p-dioxins and dibenzofurans: 2,3,7,8-tetrachlorodibenzo- p-dioxin (2,3,7,8-TCDD); 1,2,3,7,8-pentachlorodibenzo- p-dioxin (1,2,3,7,8-PeCDD);l,2,3,4,7,8-hexachlorodibenzo- p-dioxin(1,2,3,4,7,8-HxCDD)>; 1,2,3,6,7,8,-hexachlorodibenzo- p-dioxin(1,2,3,6,7,8-HxCDD); 1,2,3,7,8,9-hexachlorodibenzo- p-dioxin (1,2,3,7,8,9-HxCDD); 1,2,3,4,6,7,8-heptachlorodibenzo- p-dioxin (1,2,3,4,6,7,8-HpCDD); 2,3,7,8-tetrachlorodibenzofuran (2,3,7,8-TCDF); 1,2,3,7,8-pentachlorodibenzofuran (1,2,3,7,8-PeCDF); 2,3,4,7,8-pentachlorodibenzofuran (2,3,4,7,8-PeCDF); 1,2,3,4,7,8-hexachlorodibenzofuran(1,2,3,4,7,8-HxCDF); 1,2,3,6,7,8-hexachlorodibenzofuran (1,2,3,6,7,8-HxCDF); 1,2,3,7,8,9-hexachlorodibenzofuran (1,2,3,7,8,9-HxCDF); 2,3,4,6,7,8-hexachlorodibenzofuran (2,3,4,6,7,8-HxCDF); 1,2,3,4,6,7,8-heptachlorodibenzofnran (1,2,3,4,6,7,8-HpCDF); and 1,2,3,4,7,8,9-heptachlorodibenzofuran (1,2,3,4,7,8,9-HpCDF). These spectra are discussed qualitatively and, for the laterally chlorinated dioxins, are compared to previously recorded gas-phase GC/FT-IR spectra. Estimates of the instrumental detection limits for these compounds, using matrix isolation GC/FT-IR spectroscopy, were found to fall in the mid-to-high picogram and low nanogram ranges.

Examinations of the Matrix Isolation Fourier Transform Infrared Spectra of Organic Compounds. Part XIV: Evaluation of Library Search Routines for Identification of Essential Oil Components

1989 ◽  
Vol 43 (6) ◽  
pp. 998-1003 ◽  
Author(s):  
W. M. Coleman ◽  
Bert M. Gordon
Keyword(s):  
Fourier Transform ◽  
Infrared Spectra ◽  
Matrix Isolation ◽  
Fourier Transform Infrared ◽  
Absolute Difference ◽  
Citronella Oil ◽  
Fourier Transform Infrared Spectra ◽  
The Matrix ◽  
Ft Ir ◽  
Lemon Oil

A set of five search routines—absolute difference, absolute derivative, square difference, square derivative, and Euclidean difference—have been applied to the analysis of the matrix isolation/Fourier transform-infrared spectra (MI/FT-IR) of the components of four essential oils: coriander oil, lemon oil, geranium oil, and citronella oil. The routines were tested under a variety of parameters on a diverse set of compounds and IR spectra. Areas of acceptable performance by the routines as well as areas of marginal performance are discussed. Under the conditions of this study, the absolute derivative routine is judged to be the most acceptable of the five.

Examinations of the Matrix Isolation Fourier Transform Infrared Spectra of Organic Compounds: Part XV

1989 ◽  
Vol 43 (6) ◽  
pp. 1004-1008 ◽  
Author(s):  
W. M. Coleman ◽  
Bert M. Gordon
Keyword(s):  
Fourier Transform ◽  
Infrared Spectra ◽  
Matrix Isolation ◽  
Fourier Transform Infrared ◽  
Argon Matrix ◽  
Fourier Transform Infrared Spectra ◽  
The Matrix ◽  
Ft Ir ◽  
Oil Components ◽  
Search Routine

Matrix isolation Fourier transform infrared spectra (MI/FT-IR) of a series of essential oil components have been described. Clear, well-defined differences were detected in the MI/FT-IR spectra of compounds having minor differences in their structure. A library search routine was found to correctly identify components of interest when visual differences were not clearly evident. The presence of discrete conformers in the argon matrix resulted in the presence of split absorptions in the carbonyl band for selected compounds.

Examination of the Matrix Isolation Fourier Transform Infrared Spectra of Organic Compounds: Part III

1987 ◽  
Vol 41 (7) ◽  
pp. 1163-1169 ◽  
Author(s):  
W. M. Coleman ◽  
Bert M. Gordon
Keyword(s):  
Fourier Transform ◽  
Solid State ◽  
Vapor Phase ◽  
Infrared Spectra ◽  
Steric Hindrance ◽  
Fourier Transform Infrared ◽  
Fourier Transform Infrared Spectra ◽  
The Matrix ◽  
Ft Ir ◽  
Carbonyl Absorption

Matrix-isolated (MI) Fourier transform infrared spectra (FT-IR) have been collected on a series of esters and ketones. The values for the carbonyl absorption are intermediate between the values for vapor-phase (VP) and solid-state (SS) phases. The spectra reveal a splitting or broadening of the carbonyl absorption in the majority of cases for both compound types. The splitting, on the order of 5 to 10 cm−1, does not appear to be a function of concentration at ≤20 ng on the cryogenic disk. The splitting is also not unequivocally due to steric hindrance about the carbonyl group. Compounds with liner as well as branched substituents display spectra having split carbonyl absorptions. Isolation of molecules within multiple types of matrix sites is advanced as the predominant cause of the splitting phenomenon. Implications and consequences of the observed splitting are discussed.

Influence of Reaction Time on Properties of BaTiO3 Coated Ni Nanoparticles by a Novel Sol-Precipitation Method

2014 ◽  
Vol 602-603 ◽  
pp. 1060-1064 ◽  
Author(s):  
Ya Nan Hao ◽  
Xiao Hui Wang ◽  
Long Tu Li
Keyword(s):  
Fourier Transform ◽  
Reaction Time ◽  
Infrared Spectra ◽  
Coating Layer ◽  
Fourier Transform Infrared ◽  
Precipitation Method ◽  
Ni Nanoparticles ◽  
Ft Ir ◽  
Oxidation Properties ◽  
The Fourier Transform

Uniform BaTiO3 polycrystalline coating layer on Ni nanoparticles is achieved by a novel sol-precipitation method. The Fourier transform infrared spectra (FT-IR) of the coated samples inhibit that there is typical Ba-O and Ti-O bond for crystalline BaTiO3.The influence of reaction time on the properties of the coated samples is investigated. It is found that the coating layer contains less BaCO3 impurity and crystallizes more completely along with the increase of the reaction time. Moreover, the anti-oxidation properties of these samples are significantly improved.

Diffuse Reflectance and Photoacoustic Fourier Transform Infrared Spectra of Silica Surfaces under Polarizable Gases

1987 ◽  
Vol 41 (7) ◽  
pp. 1156-1159 ◽  
Author(s):  
W. Charles Story ◽  
Tsutomu Masujima ◽  
Jim Liang ◽  
Guangyue Liu ◽  
Edward M. Eyring ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Infrared Spectra ◽  
Diffuse Reflectance ◽  
Fourier Transform Infrared ◽  
Sample Surface ◽  
Photoacoustic Signal ◽  
Silica Surfaces ◽  
Reported Effect ◽  
Tentative Explanation ◽  
Ft Ir

It has been reported that the use of an infrared transparent polarizable gas such as xenon enhances the FT-IR photoacoustic signal of some species adsorbed on a sample surface. Diffuse reflectance and photoacoustic FT-IR methods were used to obtain spectra of silica surfaces under helium, nitrogen, and xenon. Absence of the reported effect with both techniques is shown, and a tentative explanation for these results is given.

Infrared Photoacoustic Spectroscopy of Conducting Polymers. I. Undoped and n-Doped Polyacetylene

1981 ◽  
Vol 35 (6) ◽  
pp. 557-559 ◽  
Author(s):  
Stephen M. Riseman ◽  
Stuart I. Yaniger ◽  
Edward M. Eyring ◽  
David Macinnes ◽  
Alan Graham Macdiarmid ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Infrared Spectrum ◽  
Conducting Polymers ◽  
Infrared Spectra ◽  
Photoacoustic Spectroscopy ◽  
Fourier Transform Infrared ◽  
Spectral Shifts ◽  
Ft Ir ◽  
Infrared Photoacoustic Spectroscopy

Fourier transform infrared photoacoustic (FT-IR-PA) spectroscopy has been used to obtain the first published infrared spectrum of a heavily n-doped polyacetylene. Comparisons are made with the FT-IR-PA spectrum of undoped polyacetylene. All the infrared peaks in the FT-IR-PA spectrum of undoped polyacetylene agree in wavelength to ±10 cm−1 with transmission infrared peaks previously assigned by Shirakawa and Ikeda. Spectral shifts and intensity differences between the n-doped and undoped polyacetylene are similar to changes noted previously in the infrared spectra of p-doped polyacetylenes.

Examination of the Matrix Isolation Fourier Transform Infrared Spectra of Organic Compounds: Part IV

1987 ◽  
Vol 41 (7) ◽  
pp. 1169-1172 ◽  
Author(s):  
W. M. Coleman ◽  
Bert M. Gordon
Keyword(s):  
Fourier Transform ◽  
Infrared Spectra ◽  
Substituent Effects ◽  
Fourier Transform Infrared ◽  
Band Broadening ◽  
Aromatic Rings ◽  
Fourier Transform Infrared Spectra ◽  
The Matrix ◽  
Ft Ir ◽  
Carbonyl Absorption

Matrix-isolated (MI) Fourier transform infrared spectra (FT-IR) have been collected on a series of aldehydes and acids. The values for the carbonyl absorption are intermediate between the higher values for vapor-phase (VP) and lower values for solid-state (SS) phases. Substituent effects on aromatic rings induce shifts in carbonyl absorptions in the same manner as found in VP and SS studies. The magnitude of the shifts is approximately the same for all three phases. The spectra reveal a splitting or broadening of the carbonyl absorption for both aldehydes and acids. The size of the molecule affects the degree of band broadening. In certain cases discrete conformers appear to have been isolated in the matrix.

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