| 摘要 |
<p>Use of branched homo- or copolymer, obtained by polymerization of monomers of 2-phenyl-4,5-dihydro-oxazole compound (I) or 2-naphthalen-2-yl-4,5-dihydro-oxazole compound (II), to increase the glass transition temperature of thermoplastic partially aromatic polyamides, is claimed. Use of branched homo- or copolymer, obtained by polymerization of monomers of 2-phenyl-4,5-dihydro-oxazole compound of formula (I) or 2-naphthalen-2-yl-4,5-dihydro-oxazole compound of formula (II), to increase the glass transition temperature of thermoplastic partially aromatic polyamides, is claimed. R 1>H, COOR 4>, OH or 4,5-dihydro-oxazole group of formula (a); and R 2>, R 3>, R 5>, R 6>H, methyl, ethyl, benzyl or phenyl. Provided that at least one of the residues of: R 2>and R 3>are H; and R 5>or R 6>is H. [Image] [Image].</p> |
