| Akzo US Pat. 5,143,988
1992 |
Here the refractive index
modulation is obtained by varying the proportion of the Titanium
alkoxide in the inorganic-organic hybrid.
 |
+ |
(IsocyanatePr)Si(OC2H5)3 |
PEPO
PM 5000 |
|
PEPO PM 5000 |

PEPO functionalized with Si-OCH2O5 terminal
groups
+
Ti(OisoPr)4

TiO2-PEPO

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