alkylene

alkylene

[′al·kə‚lēn]
(organic chemistry)
An organic radical formed from an unsaturated aliphatic hydrocarbon; for example, the ethylene radical C2H3‒.
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References in periodicals archive ?
M2 PRESSWIRE-August 14, 2019-: Alkylene Carbonates Industry Global Production Analysis, Demand By Regions, Segments And Applications 2019-2023
The up shift of the spectra comes from the weakening of hydrogen bond and increase in the heterogeneity of system that determines an increase of the scattered radiation as result of increasing in the mobility of alkylene segments.
The composition is comprised of ethoxylated alcohol; polymeric alkylene oxide block copolymer; oxygenated hydrocarbon co-hardening agent.
Absorption bands with the following wave numbers were observed in the IR spectra of the obtained compounds (Figure 3(a)): nC=N = 1600-1630 [cm.sup.-1], indicating the presence of imidazoline cycles; nC=0 = 1740-1745 [cm.sup.-1], n-N(CO)R = 1660 [cm.sup.-1], and nCN = 1260-1300 [cm.sup.-1] can be related to alkanoylamide structures; [delta][(C[H.sub.2]).sub.x] = 720 [cm.sup.-1]-- corresponds to pendular oscillation of alkylene structure in a chain [21].
Duke developed ozone reactive polymers based on substituted or unsubstituted alkylene polymers and their salts.
Synthesis and comparative biodegradability studies of three poly(alkylene succinate)s.
The stoichiometry favors the formation of long sequences of tetramethylene terephthalate (4GT) units in block copolymers consisting of crystallizable 4GT hard segments and amorphous elastomeric poly(alkylene ether terephthalate) soft segments (refs.
During the drafting process, describing and protecting alternatives is where the inventor's knowledge of the invention is critical--what is the length of the alkylene chain such that the surfactant still retains activity?
Manufactured by the Japanese company Tokai Optical, this material, which has the ingredient Alkylene Sulfide Polymer, is currently the highest available refractive index plastic, and is supplied by several UK laboratories.
Gongiwala, "A novel approach to macrocyclic complexes with mixed ligands: synthesis, characterization, catalytic and antimicrobial studies of some alkylene dithiophosphate derivatives of macrocyclic complexes of Ni(II)," Journal of Indian Council of Chemists, vol.