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由二苯基二氯硅烷和硼酸在溶剂中、Ｎ２气下进行脱盐酸缩合反应而生成的聚二苯基硼硅氧烷（ＰＢｐ）及其衍生物具有热失重开始温度高（４００℃）、耐氧化、可溶、可熔等特点，在非氧化性气氛中经热处理可转成碳化硅。用ＰＢｐ衍生物的溶液浸渍石墨制品，经热处理后，在８００℃空气中，保温６ｈ氧化损失率与同等条件下的未浸渍的石墨制品相比，小一倍多，大大提高了石墨制品的高温耐氧化性。
Polydiphenylborosiloxane (PBp) and its derivatives formed by dehydrochlorination of diphenyldichlorosilane and boric acid in a solvent and N2 gas have a high onset weight loss (400C) Resistant to oxidation, soluble, fusible and other characteristics, in a non-oxidizing atmosphere by heat treatment can be converted into silicon carbide. Graphite products impregnated with PBp derivative solution, after heat treatment, the oxidation loss rate in air at 800 ℃ for 6h was twice as much as that of non-impregnated graphite products under the same conditions, greatly increasing the high temperature of graphite products Oxidation resistance.