In the FTIR spectra of resins comprising a high content of monomers without aromatic carbon-carbon double bonds
, the peaks at 1608 and 1582 [cm.
With the availability of a large number of unsaturated polymers of differing microstructures, the selective reduction of carbon-carbon double bonds offers a way of producing a wide variety of specialty polymers.
The control reaction is the coordination of carbon-carbon double bonds to the intermediate B (k' step) shown in Scheme 1.
After irradiation, no trace of carbon-carbon double bonds
was found in the sample, indicating the complete consumption of VTMS via grafting or cross-linking on PPC chain upon irradiation.
has been granted a patent for an aqueous composition useful as an adhesive comprised of at least one halogenated olefin polymer, at least one high-functionality epoxy resin, and at least one diacid-modified resin that is different from the halogenated olefin polymer; wherein the diacid-modified resin is made by reacting one or more resins that contain carbon-carbon double bonds
with one or more diacid or diacid-derivative small molecules with carbon-carbon double bonds
Saturated fat (containing no carbon-carbon double bonds
in their structure) are implicated in heart disease but can be repeatedly heated when it comes to frying.
Key statement: A crosslinkable and crosslinked organosilicon polymer which is prepared from a mixture of a reactive polysiloxane resin having both reactive carbon-carbon double bonds
and silicone-hydrogen groups, characterized by alternating structures of polycyclic polyene residue and cyclic (or tetrahedral) polysiloxane residue, and either vinyl terminated fluorine-containing polysiloxane or vinyl terminated phenyl-substituted siloxane.
For example, a classification of "R" (as in SBR) indicates the rubber has an unsaturated carbon molecular chain containing carbon-carbon double bonds
1] disappeared completely, indicating that the carbon-carbon double bonds
have reacted to a great extent in the process of vulcanization.
Therban, the first representative of the new elastomer class known as hydrogenated nitrile rubber (HNBR) is a heat, oil and wear resistant specialty rubber obtained by selective hydrogenation of the carbon-carbon double bonds
of nitrile rubber (NBR) (refs.