| abstract |
A silicon-containing prepolymer is hydrolysis condensation polymer reaction product of a first mixture composed of the following components comprising tetraalkoxysilane as chemical formula (I), silox coupling agent as chemical formula (II) and hydrophilic silicon-containing precursor as chemical formula (III). R11﹑R12﹑R13 and R14 in chemical formula (I), X﹑R21﹑R22﹑R23 and R24 in chemical formula (II), Y﹑d﹑Z1﹑Z2﹑R31﹑R32﹑R33﹑R34﹑R35 and R36 in chemical formula (III) are defined as the specification and claims and are based on mole. The content ratio of hydrophilic silicon-containing precursor, tetraalkoxysilane, and silox coupling agent is ranged from 1: 2 to 22: 2 to 40. |