| 摘要 |
<p>The invention relates to a curable polysiloxane of formula AaBb(R3SiO0.5)c(R2SiO)d(R2SiO1.5)e(SiO2)f where A and B are silacyclobutane, disilacyclobutane or benzosilacyclobutene functional groups in which R is individually selected from the group consisting of saturated and unsaturated hydrocarbon group having 1 to 6 carbon atoms and the sum of a,b,c,d,e and f is greater than or equal to 3, the sum of a and b is greater than or equal to 2, and the average content ratios of monomer units with respect to polymer molecules are within the following ranges: 0.8>/=a/(a+b+c+d+e+f)>/=0; 1.0>/=b/(a+b+c+d+e+f)>/=0; 0.5>/=c/(a+b+c+d+e+f)>/=0; 1.0>d/(a+b+c+d+e+f)>/=0; 1.0>e/(a+b+c+d+e+f)>/=0; 0.65>f/(a+b+c+d+e+f)>/=0.</p> |
