Results 101 to 110 of about 397,176 (340)

Covalent Adaptable Networks with Associative Siloxane Exchange Enabled by Amide‐Based Internal Catalysis: Designing for Reprocessability and Extrudability by Increasing the Cross‐Link Density

open access: yesAdvanced Functional Materials, EarlyView.
Internally catalyzed siloxane dynamic chemistry is demonstrated resulting from amides covalently linked through alkyl chains to siloxanes. The alkyl length in the siloxane‐containing monomer tunes the network cross‐link density. Siloxane exchange dynamics are faster with increasing cross‐link density, because associative exchange is second order in ...
Nathan S. Purwanto   +5 more
wiley   +1 more source

DEGRADATION OF PETROLEUM REFINERY WASTE BY A CONSORTIUM OF HYDROCARBONOCLASTIC BACTERIA ON SEVERAL C:N:P RATIO

open access: yesJournal of Tropical Life Science, 2012
Bioremediation is an alternative method to treat petroleum waste using microorganism into nontoxic end product. The method is relatively cheap, effective, and environmental friendly.
Syukria I Zam, Irfan Mustafa
doaj  

Synthesis of 2,4,8,10-tetroxaspiro5,5undecane [PDF]

open access: yes, 1985
Pentaerythritol is converted to its diformal, 2,4,8,10-tetroxaspirol5.5undecane, by heating it to a temperature within the range of about 110 to 150 C, for a period of up to 10 minutes, in the presence of a slight excess of paraformaldehyde and of a ...
Poshkus, A. C.
core   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

Water in Petroleum and Petroleum Products

open access: yes
The chapter presents experimental data, published in numerous source materials and reviews, on the mutual solubility of water in hydrocarbons and hydrocarbons in water, relationship of water solubility in hydrocarbons depending on the structure of the organic compound molecule and the change of solubility as a function of temperature.
openaire   +2 more sources

Fuel quality processing study, volume 1 [PDF]

open access: yes
A fuel quality processing study to provide a data base for an intelligent tradeoff between advanced turbine technology and liquid fuel quality, and also, to guide the development of specifications of future synthetic fuels anticipated for use in the time
Bela, A.   +7 more
core   +1 more source

Process for preparation of dianilinosilanes Patent [PDF]

open access: yes, 1969
Synthesis of high purity ...
Dunnavant, W. R., Marrkle, R. A.
core   +1 more source

Synthesis of α-hydroxy-β,β-difluoro-γ-ketoesters via [3,3]sigmatropic rearrangements [PDF]

open access: yes, 2000
Readily available γ,γ-difluorinated allylic alcohols obtained from trifluoroethanol were esterified efficiently. Exposure to strong base (LDA) afforded the ester enolates, in which chelation both controlled configuration and stabilised against ...
Broadhurst, Michael   +3 more
core   +1 more source

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