Results 231 to 240 of about 249,517 (263)

Thermal Degradation of Sulforaphane in Aqueous Solution

Journal of Agricultural and Food Chemistry, 1999
Sulforaphane, a cancer chemopreventive agent identified from broccoli, was degraded in an aqueous solution at 50 and 100 degrees C. The reaction mixtures were extracted with methylene chloride and analyzed by gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS).
Rosen, RT, Jin, Y, Wang, M, Ho, CT
openaire   +4 more sources

Peculiarities of the Thermal Degradation of Chlorosulphonated Polyethylenes

International Journal of Polymeric Materials, 1990
Abstract A kinetic study is made of the thermal degradation of chlorosulphonated polyethylenes containing 3–40 wt% of Cl and 1.4–2.2 wt% of sulphur. It is concluded that the instability of these polymers is principally due to activation of the CHCl structures in the β-position to the [sbnd]CH2[sbnd]SO2Cl groups.
K. S. Minsker, A. M. Steklova, G. E. Zaikov   +2 more
openaire   +1 more source

Beta-Carotene: Thermal Degradation

Science, 1964
Thermal treatment of crystalline β-carotene (240°C in a vacuum) results in the formation of a volatile fraction containing chiefly aromatic hydrocarbons such as toluene, m - and p -xylene, 2,6-dimethylnaphthalene, and ionene.
openaire   +2 more sources

Thermal degradation of actinomycins to dioxopiperazines

Journal of the Chemical Society, Perkin Transactions 1, 1975
The dioxopiperazines resulting from thermal degradation of several actinomycins were identified by g.l.c. comparison with synthetic compounds, providing a convenient approach to amino-acid sequence determination. In a comparison of relative yields of various dioxopiperazines, different degradative pathways were apparent at different temperatures.
openaire   +2 more sources

Thermal degradation of polystyrene

Journal of Applied Polymer Science, 1976
AbstractThe importance of the study of thermal degradation of polymeric fuels arises from their role in the combustion of solid propellants. Estimation of the condensed‐phase heat release during combustion can be facilitated by the knowledge of the enthalpy change associated with the polymer degradation process.
Kishore, K, Verneker, VR Pai, Nair, MNR
openaire   +1 more source

The Thermal Degradation of Pectin

Journal of the American Chemical Society, 1945
R C, MERRILL, M, WEEKS
openaire   +2 more sources

Thermal Degradation of Polymeric Materials

2023
Krzysztof Pielichowski, Njuguna, James, Tomasz M. Majka   +2 more
openaire   +2 more sources

Thermal Degradation of Antioxidant Compounds: Effects of Parameters, Thermal Degradation Kinetics, and Formulation Strategies

Food and Bioprocess Technology, 2022
Jaison Jeevanandam, Jobrun Nandong, Yen San Chan   +2 more
exaly  

The thermal and thermal-oxidative degradation of polyformaldehyde—I. The order of reaction in thermal degradation

Polymer Science U.S.S.R., 1963
L.A. Dudina, N.S. Yenikolopyan
openaire   +1 more source

On the thermal degradation of marble

International Journal of Rock Mechanics and Mining Sciences, 1999
openaire   +3 more sources