Diglycidyl ether of 1,4-butanediol

The diglycidyl ether of 1,4-butanediol is a low-viscosity difunctional epoxy that is a... 

Diglycidyl ether of 1,4-butanediol. See 1,4-Butanediol diglycidyl ether Diglycidyl ether of hydrogenated diphenylol propane. See Epoxy, bisphenol A, hydrogenated... 

Butyl glycidyl ether 2-Ethylhexyl glycidyl ether r-Butyl glycidyl ether Phenyl glycidyl ether o-Cresyl glycidyl ether C12-C14 alkyl glycidyl ether Diglycidyl ether of 1,4 butanediol... 

The diglycidyl ether of 1,4 butanediol is a commercially available (CIBA-GEIGY s RD-2) low-viscosity difunctional epoxy that is a somewhat less efficient diluent than the monoepoxides but does offer the advantage of having two reactive sites. 

Multifunctional epoxides have been used predominantly as cross-linkers because of their electrophilic nature. Pentaerythritol tetraglycidyl ether, a tetrafunctional epoxide, was used originally by Alpert and Regnier (37). Pearson and Regnier (38) compared two difunctional epoxides, ethylene glycol diglycidyl ether and 1,4-butanediol diglycidyl ether. These multifunctional cross-linkers increased the hydrophilic nature of the support. 

An example of the use of 1,4-butanediol diglycidyl ether for the activation of soluble dex-tran polymers is given in Chapter 25, Section 2.3. One end of the fezs-epoxide reacts with the hydroxylic sugar residues of dextran to form ether linkages, which terminate in epoxy functionalities. The epoxides of the activated derivative then can be used to couple additional mol-ecules-containing nucleophilic groups to the dextran backbone. 

Figure 25.16 An epoxy-functional dextran derivative may be prepared by the reaction of 1,4-butanediol diglycidyl ether with the hydroxyl groups of the polymer.

Oligoester Reaction product of 1,4-butanediol diglycidyl ether, 2-ethyl-1, 3-hexanediol, and 4-methy1-1,2-cyclohexane dicarboxylic acid anhydride MW 830 f = 4 r - 0.75. 

Figure 4. Long-term decay parameters (r2, equation 1) for d33 of (PS)O-NPP films simultaneously corona poled and cross-linked with the indicated equivalents of 1,4-butanediol diglycidyl ether/equiv-alents available phenol OH groups.

Butanediol diglycidyl ether Butane-1,4-diol diglycidyl ether 2,2 -[1,4-Butanediylbis (oxymethylene)i bisoxirane Diglycidyl ether of... 

Butanediol diglycidyl ether is a viscous liquid having a density of 1.45 at 20°C. It is a hygroscopic, corrosive compound with a displeasing odor that should be handled with care in a fume hood. Aqueous solutions of the bis-epoxide usually possess a characteristic oily film on their surfaces, indicating the limited solubility of the reagent. 

Modification of dextran polymers with 1,4-butanediol diglycidyl ether results in ether derivatives of the dextran hydroxyl groups, which then contain hydrophilic spacers with terminal epoxy functions (Figure 25.16). 

It is important to emphasize that the introduction of a spacer should never affect the binding characteristics of the support. The selected spacer must not introduce any charges and should not be sufficiently hydrophobic to cause any kind of non-specific interaction. Several molecules can fulfill this demand but only a few of them are regularly used. Most of these contain terminal amino or carboxylic groups. In particular these are diaminodipropyl amine, 6-aminocapronic acid, 1,6-diaminohexane, ethylenediamine, l,3-diamino-2-propanol, succinic acid, 1,4-butanediol diglycidyl ether, and others [96]. Extensive description of other bifunctional reagents can be found in the book of Wong [89]. 

Figure 6.9 Experimental curves of the product e"e0 to as a function of reaction time, t, for two epoxy systems (a) the first system is a stoichiometric solution of diglycidyl ether of butanediol with 4,9-dioxadecane-1,12 diamine, at T, = 60°C TgTO + 70°C (b) the second system is the same as that for Fig. 6.7, at Tj = 135°C Tgoo — 40°C. (Eloundou et a/., 1998a. Copyright 2001. Reprinted by permission of Wiley-VCH)...

Lichtenhan et al. [23,24] prepared several monosubstituted POSS epoxides (XIX). The Cs-based chain epoxy (5-9 wt%) was used with 1,4-butanediol diglycidyl ether (EDGE) (XX), diglycidyl ether of Bisphenol A (DGEBA) (XXIII) and polyoxypropylene diamines (XXI) to prepare nano-reinforced epoxy network glasses (Scheme 6) [23]. 

Lee and Lichtenhan [109] reported on thermal studies of monofunctional epoxy-substituted POSS monomer that was incorporated into a network composed of two difunctional epoxy monomers, the diglycidyl ether of bisphenol-A (DGEBA) and 1,4-butanediol diglycidyl ether (EDGE), at a DGEBA/BDGE 9 1 mole ratio. 

Di-epoxides such as ethylene glycol diglycidyl ether (EGDE) and 1,4-butanediol diglycidyl ether (BDDE) in the presence of TEMED catalyst have been used as... 

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