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公开(公告)号:DE1645490A1
公开(公告)日:1970-07-30
申请号:DE1645490
申请日:1965-11-24
Applicant: THIOKOL CHEMICAL CORP
Inventor: GREEN JOSEPH DOVER , MAYES NATHAN
Abstract: Boron containing polymers are prepared by reacting an organoboron diol of the formula HOR1OR2OH or (HOR1OR2)O, wherein O is a divalent carboranyl radical -CB10H10C- and R1 and R2 are divalent aliphatic groups together comprising at least 3 carbon atoms in a linear chain with the carboranyl group with an aldehyde such that the copolymer has at least six atoms between two adjacent carboranyl groups of each three successive carboranyl groups. Suitable carboranyl radical containing diols are bis - (2 - hydroxyethyl - 1 - carboranylmethyl)-ether. 1 - Hydroxyethyl - 2 - hydroxypropyl-carborane and bis - (hydroxyethyl) - carborane. Preferred aldehydes are formaldehyde and its donors, acetaldehyde and crotonaldehyde. The reaction may be catalysed by an acidic catalyst such as para toluene sulphonic acid. Cross-linking of the polymers may be effected by use of di- or tri-isocyanates.