Characterization of Equatorial and Axial Six-Membered-Ring Peroxyl Radicals
摘要:
[GRAPHICS]Spectroscopic data are consistent with computations that show that, in their most stable conformations, the peroxyl moiety is equatorial in cyclohexylperoxyl radicals and axial in oxa- and most polyoxacyclohexyl-2-peroxyl radicals.
Disclosed are enol ethers compounds. The enol ethers exhibit low volatile organic content and are useful in a variety of chemical applications. The enol ethers can be used in applications as diluents, wetting agents, coalescing aids, paint additives and as intermediates in chemical processes. The enol ethers also have particular utility as film-hardening additives in coating formulations.
An article that includes a functionalized copolymer and the use thereof, particularly in a process for binding biomaterials, such as in a process for separating aggregated proteins from monomeric proteins in a biological solution; wherein the article includes: a) a porous substrate; and b) a copolymer covalently attached to the porous substrate, the copolymer comprising a hydrocarbon backbone and a plurality of pendant groups attached to the hydrocarbon backbone, wherein 1) each of a first plurality of pendant groups comprises: (a) at least one acidic group or salt thereof; and (b) a spacer group that directly links the at least one acidic group or salt thereof to the hydrocarbon backbone by a chain of at least 6 catenated atoms; and 2) each of a second plurality of pendant groups comprises: (a) at least one acidic group or salt thereof; and (b) a spacer group that directly links the at least one acidic group or salt thereof to the hydrocarbon backbone by a chain of at least 6 catenated atoms; and wherein the first plurality of pendant groups are different than the second plurality of pendant groups; and wherein a mole ratio of the first plurality of pendant groups to the second plurality of pendant groups is in a range of 95:5 to 5:95.
Thermotropic liquid crystal polymer microcapsules, a method for preparing the same, and cosmetic compositions containing the same
申请人:——
公开号:US20030129247A1
公开(公告)日:2003-07-10
There are provided thermotropic liquid crystal polymer microcapsules which can show behavior of liquid crystal as it is within polymer phase due to phase separation between liquid crystal and polymer, so to be incorporated into cosmetic composition as an additive for visual effect, and in loading active ingredients within liquid crystal, can improve the stability of the active ingredients in cosmetic base; and a method for preparing the same; and cosmetic compositions containing the same.
Additives for inhibiting the formation of gas hydrates
申请人:——
公开号:US20040030206A1
公开(公告)日:2004-02-12
The invention relates to the use of polymers which contain between 1 and 99 mol-% structural units of formula 1,
1
wherein R
1
represents hydrogen or C
1
-C
6
alkyl, R
2
represents C
1
-C
24
-alkyl, C
2
-C
24
-alkylene or a C
6
-C
18
-aryl radical, which can be substituted with a C
1
-C,
12
-alkyl group, A represents identical or different C
2
-C
4
alkylene radicals and, x, represents whole number from 2-40 in quantities from 0.01-2 wt-%, in quantities from 0.01 to 2 wt-%, in relation to the aqueous phase. Said The polymers can be used as gas hydrate inhibitors.
[EN] PROCESSES FOR SEPARATING AGGREGATED PROTEINS FROM MONOMERIC PROTEINS IN A BIOLOGICAL SOLUTION<br/>[FR] PROCÉDÉS DE SÉPARATION DE PROTÉINES AGRÉGÉES À PARTIR DE PROTÉINES MONOMÈRES DANS UNE SOLUTION BIOLOGIQUE
申请人:3M INNOVATIVE PROPERTIES CO
公开号:WO2018048698A1
公开(公告)日:2018-03-15
A process for separating aggregated proteins from monomeric proteins in a biological solution, the process including: providing at least one filter element having a contacting surface, wherein the filter element comprises filter media comprising: a porous substrate; and disposed on the porous substrate, a polymer comprising a hydrocarbon backbone and a plurality of pendant groups attached to the hydrocarbon backbone, wherein each of a first plurality of pendant groups comprises: (1) at least one acidic group or salt thereof; and (2) a spacer group that directly links the at least one acidic group or salt thereof to the hydrocarbon backbone by a chain of at least 6 catenated atoms; and allowing an initial biological solution to contact the contacting surface of the filter element under conditions effective to separate the aggregated proteins from the monomeric proteins such that a final biological solution includes purified monomeric proteins.