Heat captor

Garrigues described the use of graphite as a heat captor under the action of micro-wave irradiation. Graphite is a chemically inert support that couples strongly with microwaves by a conduction process and is able to transmit intense thermal energy to the supported reagents [35]. 

At definite times samples are withdrawn and titrated by an appropriate method. The temperature is controlled either with a constant temperature oil bath or a heating jacket and a P.I.D. regulation with a captor plunged in the reaction medium. 

When BuSi(0SiMe20H)3 is heated, poly-condensation is immediately started, forming many different products. In order to synthesize low-molecular condensates, we have reacted BuSi(OSlMe2Cl)3 with one equivalent of the triol BuSi(0H)3 using triethylamine as HCl captor (compare also Eq. 2) the cage like BuSi(0SiMe20)3Si Bu is formed in 60% yield. In Fig. 3 the result of an X-ray structure analysis is depicted. Bicyclic molecules with the same skeleton of atoms but with different substituents are known [20,21]. 

Irradiated PVDF and poly(VDF-co-TrFE) copolymer possess ferroelectric properties that allow the use of such fluorinated polymer in the domain of captors, sensors, and detectors [47,194]. Another interesting property of crosslinked poly(VDF-co-HFP) copolymer is their insolubihty in organic solvent [195]. Cured fluorinated polymers can be processed as membranes for many electrochemical applications such as fuel cell and batteries [196]. For example, a poly(VDF-co-HFP) copolymer has been crossUnked with various systems such as polyols [197], by irradiation with electron beam or y-rays [197] or with aliphatic amines [198] in order to elaborate a solid polymer electrolyte for non aqueous lithium battery [197,198]. This electrolyte is particularly interesting for its ionic conductivity, its adhesion with an electro-conductive substrate and also remarkably enhanced heat resistance. 

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