Structure, Microscopic Ordering, and Viscous Properties of Amorphous Poly(
n
‐alkylsilsesquioxane) Liquids and Solids Synthesized by Cosolvent‐Free Hydrolytic Polycondensation of
n
‐Alkyltrimethoxysilanes (Structure, Microscopic Ordering, and Viscous Properties of Amorphous Poly( n ‐alkylsilsesquioxane) Liquids and Solids Synthesized by Cosolvent‐Free Hydrolytic Polycondensation of n ‐Alkyltrimethoxysilanes)