Characterization and Some Insights into the Reaction Chemistry of Polymethylsilsesquioxane or Methyl Silicone Resins

Table 3

²⁹Si NMR data for PMSQ-1 and MeDT-1.

Materials	M	D^1; (−12/−15)	D^2-a; (−15/−19.2)	D^2-b; (−19.2/−23)	T^1; (−46/−49)	T^2; (−50/−58)	T^3-a; (−58/−60.5)	T^3-b; (−60.5/−70)
PMSQ-1	—	—	—	—	—	0.194	0.034	0.772
—cap^a	0.150	—	—	—	—	0.045	0.024	0.931
PMSQ-NA	—	—	—	—	0.015	0.378	0.039	0.568
—cap^a	0.292	—	—	0	—	0.102	0.045	0.854
MeDT-1	—	0.004	0.093	0.047	—	0.142	0.027	0.688
—cap^a	0.111	0.005	0.088	0.053	—	0.035	0.023	0.797

aThe sum of the D and the T region integration is standardized as unity excluding the 𝑀 unit.