Epoxy resin fluorinated

Synthesis and Properties. Several polymers containing HFIP-O groups have been investigated, the most common beeing epoxies and polyurethanes. The development of fluorinated epoxy resins and the basic understanding of their chemistry has been reviewed (127). 

Several classes of polymers including epoxies have been developed from 2-phenyl-l,l,l,3,3,3-hexafluoropropan-2-ol and its derivatives.1 Fluorinated epoxy resins are the key intermediates for the new types ofpractical organic coatings and plastics, which have fluorocarbon properties and convenient characteristics such as hydrophobicity, oleophobicity, light stability, low friction, and, in some cases, possibly high thermal stability. 

Fluorinated diacyl peroxides, 76 472 Fluorinated epoxy resins, 70 366-367 Fluorinated ethylene propylene (FEP), for copper wire, 7 691. See also FEP polymer... 

One method that has shown promise for reducing the permeation of water through epoxy coatings involves the introduction of fluorine into the epoxy network. Highly fluorinated epoxy resins of the form shown below have been developed by Griffith,... 

Griffith s investigations of fluorinated epoxy resins are many and it is difficult to summarize them. An interesting patent [89] concerns a large variety of diepoxies (below) where represents the H2C—CH CH2 O — group ... 

DER332LC epoxy resin, 100 pbw +DEAPA, 7pbw Fluorinated epoxy resin Fluorinated epoxy resin, 100 pbw +DEAPA, 7 pbw DEAPA... 

We have devdoped a novd processable third-ordo NIO polymo , PSTF, in whidi tris-azo-dye NLO-phore was incorporated into die main chain of apdyurediane with a fluorinated alkyl badtb. Fluorinafed alkyl units were used to reduce the polymo wav uide loss. The dienncal structure of PSTF is shown in Figure 7. Since diiid-orda NLO polymers gmoally have hi ier refractive indioes thm transparent pofymos, the refractive imtet of die NLO polymers should be considmd. We can ply die RIE process for PSTF polymer because the polymer has a moderate refractive index and the cladding material, UV cored fluorinated epoxy resin, has an... 

Fluorinated epoxy resins are another group of materials that might potential possess improved thermal stability. This, however, has not been demonstrated. It was shown, though, that these materials can be key intermediates in oiganic coating and plastics that require special properties, like hydrophobicity, oleophobicity, light stability, and low friction. 

Lee and co-workers [9] compared the thermal degradation behaviour of a conventional bisphenol A (BPA) based epoxy resin (Epon 820) with a fluorinated epoxy-resin derivative (Epon 6F) for both the uncured and cured systems. 

The other important diol which finds wide application in synthesis of flame retardant epoxy thermosets is 4,4 -isopropylidene bis(2,6-dibromo-phenol) (tetrabromobisphenol-A,TBPA).The primary use of TBPA is as a reactive flame retardant in epoxy resin-based circuit boards and in electronic enclosures made of polycarbonate-acrylonitrile, butadiene-styrene, etc. Hexafluorobisphenol-A (bisphenol-AF, hexafluoroisopropylidene diphenol) has also been used for the synthesis of fluorinated epoxy resin aiming at the anticorrosion coatings market for industrial vessels and pipes. The key disadvantages of fluorinated epoxies are their relatively high costs and low Tg, which limit their commercialisation. Thus utilisation of such diols in vegetable oil-based epoxy resins may result in similar performance. 

Fluoro-anhydride Curing Agent for Heavily Fluorinated Epoxy Resins," in Adhesion Science and Technology, L. H. Lee, Editor, 429 Plenum, New York (1975). 

Glycidyl ester of dimerized linoleic acid and epiclorohydrin Fluorinated epoxy resins Epoxidized cycloaliphatic olefins... 

A Fluoro-Anhydride Curing Agent for Heavily Fluorinated Epoxy Resins ... 

The most common type of epoxy resin consists of an epoxy component and a curing agent which becomes as essential in the final molecular structure as the epoxy component. In particular, an un-fluorinated curing agent dilutes the fluorine content of a fluorinated epoxy resin such that the final composition is not as highly fluorinated as the epoxy component. Since the progression toward more heavily fluorinated resins is a desirable trend in new materials... 

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