The process comprises reacting a halobutyl polymer with at least one nitrogen and/or phosphorous based nucleophile
to provide a halobutyl ionomer comprising conjugated diene units; grafting of an amine-reactive dienophile to said ionomer to form a functionalized ionomer; and optionally blending the resulting functionalized ionomer with polyamide.
Different triggering groups for redox, nucleophile
, acid/base, or photo-reactions have been developed.
1), suggesting that they are likely to be involved in catalytic activity as proton donor and nucleophile
The transesterification with sodium methoxide had only one active nucleophile
, ion [(OC[H.
For instance, 5E6Y has a nucleophile
active site at 405 and a proton active site at 458, and so we can instruct RasMol to restrict everything except 400-480 by typing "restrict 400-480" in the command window (as seen in Figure 5).
Following our previous work (24), [beta]-elimination with a mild alkylamine base and concomitant Michael-type addition of 2-mercaptoethanol as nucleophile
11) is a member of the N-terminal nucleophile
(Ntn) hydrolase superfamily, in which the precursor gene is translated into a single polypeptide chain and then folded into a self-activating pre-protein activated by intra-molecular double cleavages.
Since vanillin reacts with free carbons C6 and C8 of the A ring of flavanols, the decrease of low molecular weight proanthocyanidins reactive toward vanillin is consistent with the minor presence of nucleophile
sites on flavanol molecules due to the significant effect of OTR of closures.
Abstract Cottonseed oil (CSO) was converted into a polymerizable polyol by in-situ epoxidation and hydroxylation in the presence of water as nucleophile
and sulfuric acid as catalyst.
Endogenous hydrolysis of the phosphorylated enzyme by esterases or paraoxonases Reactivation by a strong nucleophile
such as pralidoxime (2-PAM)
It is a good nucleophile
and this reaction is the base of its most applications.
In this step, water is the attacking nucleophile
and Ser163 is the leaving group (Winkler et al.