| 摘要 |
<p>The invention relates to amorphous organic polymers satisfying the equations I and II: ( rho /M)'(9.1 x 10<-><5>.nCH + 9.1 x 10<-><4>.nNH + 1.5 x 10<-><3>.nOH) < 5.3 x 10<-><6> (I), ( rho /M)(nC + nO + 3.nS) < 2.6 x 10<-><2> (II), wherein are: rho the polymer density (g/cm<3>), M the molecular weight of the repeating units (g/mol), nCH the number of C-H bonds in the repeating units, nNH the number of N-H bonds in the repeating units, nOH the number of O-H bonds in the repeating units, nC the total number of benzene rings in the repeating units, nO the number of benzene rings adjacent to a carbonyl group in the repeating units, and nS the number of benzene rings adjacent to a sulfur atom in the repeating units. The fluorine content being < 40 % by weight, and the deuterium substitution degree being </= 40 %. The invention further provides optical members such as lenses and waveguide structures, and particularly optical transmitting systems, comprising an optical transmitting portion made of these polymers. The invention also relates to the application of these polymers, optical members, waveguide structures and transmitting systems, particularly for engine control systems. The invention permits to realize optical transmission distances more than ten times longer (100m) than with conventional systems.</p> |
