Butyl-hexyl

Within a homologous series such as the -butyl-, -hexyl-, and -octyl-substituted methacrylates there is a trend for those polymers with the bulkier substituents to show smaller values of f. Note that there is also a correlation between substituent size and Tg within this series. 

C10H22S BUTYL-HEXYL- -201.497 8.4742E-01 1.4603E-04 64.31 602 C14H28 1-TETRADECENE -213.140 1.2035E+00 9.1571 E-05 154.77... 

Most of the alkylations were carried out by adding a solution of 3,3-ethylenedioxypregna-5,16-dien-20-one in tetrahydrofuran to a solution of lithium in liquid ammonia to the point of color discharge. Treatment with the alkyl halide then furnishes the corresponding 17a-alkyl derivative (10). After hydrolysis of the 3-ketal group, 17a-methyl-, ethyl-, propyl-, butyl-, hexyl-, octyl-, allyl-, and benzylprogesterones are obtained. 

Condensation of the TV-substituted p-aminocrotonic acid ester 15 with p-benzoquinone (4) has been successfully carried out to furnish the 5-hydroxyindole 29 when the substituent R on the nitrogen of the aminocrotonic acid ester was methyl, ethyl, -propyl, isopropyl, or -butyl, -hexyl, p-cyanoethyl, p-hydroxyethyl, carbethoxymethyl, benzyl, phenyl, o-tolyl, dimethylaminopropyl, y-hydroxypropyl etc ... 

C10H22S BUTYL-HEXYL-SULFIDE 5.833E-04 701.03 -0.7143 238.16 665.98 8.665E-04 0.841... 

Ethyl, butyl, hexyl, lauryl acrylate/ BDDA... 

Particularly noteworthy are the tyrosine-derived polycarbonates (27), a family of polymers based on alkyl esters of desaminotyrosyl-tyrosine. The lead polymer in this family is poly[desaminotyrosyl-tyrosine ethyl ester (DTE) carbonate], a polymer derived from desaminotyrosyl-tyrosine ethyl ester. Other polymers in this series of tyrosine-derived polycarbonates are poly[desaminotyrosyl-tyrosine butyl ester (DTB) carbonate], poly[desaminotyrosyl-tyrosine hexyl ester (DTH) carbonate], and poly [desaminotyrosyl-tyrosine octyl ester (DTO) carbonate], where the letters B, H, and O indicate the presence of butyl, hexyl, or octyl ester pendent chains, respectively. 

The attachment of simple alkylacetylenes to pentacene in general does not yield stable materials bis(propynyl)pentacene is too unstable to be isolated and although larger alkyl substituents (butyl, hexyl, octyl) lead to slightly more stable... 

Little has been done to date to tailor the surface chemistry of the stationary phase in CEC. Novotny prepared a series of monolithic columns incorporating a variety of monomers that differ in the length of their pendant alkyl chains [35]. Unfortunately, the performance of these monoliths containing butyl, hexyl, and dodecyl methacrylate... 

Fig. 4.32. The acid-catalyzed El elimination of tert-butyl hexyl ether to isobutene and hexanol and its energy profile. K refers to the equilibrium constant of the acid/base reaction.

A similar El elimination is the cleavage of f erf-butyl hexyl ether in CF3CO2H/CH2CI2 to isobutene and hexanol (Figure 4.28). This reaction proceeds in three steps. In an equilibrium reaction, the ether is protonated to give the oxonium ion. The second step... 

The procedure has proved satisfactory for the preparation of the methyl, butyl, -hexyl, 2-ethylhexyl, and decyl esters of (liazoacetic acid. The methyl ester should be handled with particular caution since heat causes it to detonate with extreme violence. 

C10H22S butyl hexyl sulfide 16967-04-7 1.634E+10 119.980 25310 C12H26S 1-dodecanethiol 112-55-0 1.928E-K10 141.010... 

Figure 11.6 Double logarithmic plot showing the relaxation spectrum in the transition zone for six methacrylate polymers reduced to 100°C. E, B, H, O, DD, and 2-EB refer to ethyl, -butyl, -hexyl, -octyl, n-dodecyl and 2-ethyl butyl, respectively. Dash lines represent the portions of the spectra where the slope is —1/2 (From Ref. 18.)...

Figure 3.12 Relationships between kf for ejnnephrine and the concentration of alkyl sulfates in the mobile phase taken from the data of Horvath and co-workers. See Horvath (1977b) for experimental details. The curves for butyl-, hexyl- and octylsulfate have been simulated according to equation (3.25) and the following parameters (a) butyl sulfonate = 0.5, k Ax = L 1 = 200 M (b) hexyl sulfonate k - = 0.5, k x = 3, = 200 M (c) hexyl sul-...

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