| 摘要 |
<p>A phosphorus-containing silsesquioxane is represented by the formula [R<sup>1</sup>3SiO1/2]m[R<sup>2</sup>SiO3/2</su b>]n[R<sup>3</sup>SiO3/2]p[(R<sup>4</sup>O)2</su b>PO(CH2)xSiO3/2]q wherein each of R<sup>1</sup>, R<sup>2</sup>, R<sup>3</sup>, and R<sup>4</sup> independently represents a hydrocarbyl group; x represents an integer of from 1 to 8; m is a positive number less than 1.5; n and q are positive numbers greater than 0 and less than 1; and p is a number greater than or equal to 0 and less than 1. Further, (n + p)/q is in a range of from 0.5 to 99, and (n + p + q) = 1. Curable and cured compositions comprising the phosphorus-containing silsesquioxane are disclosed.</p> |
