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

Table 5

GC quantification of assignable low molecular weight species in MeDT-1.

GC time	Structure^a	FE w/cap	FW; w/o cap	wt%; w/o cap
4.896	T^34T^22	416	416	0.16
5.474	T^34T^22	490	490	0.13
5.513	T^36D^2	476	476	0.84
5.606	T^34D^23	490	490	0.16
5.749	T^36D^22^a	550	550	0.62
5.832	T^36D^22^a	550	550	0.30
6.011	T^36D^22^a	550	550	0.11
6.075-1	T^34T^2D^22^b	564	492	0.15
6.075-2	T^36D^22^a	550	550	0.31
6.118-1	T^34T^2D^22^b	564	492	0.32
6.118-2	T^34T^2D^22^b	564	492	0.46
6.149	T^34T^2D^22^b	564	492	0.15
6.189	T^34T^2D^22^b	564	492	0.45
6.278	T^36T^2D^2	624	552	0.63
6.338-1	T^38D^2	610	610	0.286
6.338-2	T^36T^2D^2	624	552	1.30
6.446	T^38D^2	610	610	0.10
6.566	T^36T^2D^2	624	552	0.28
6.647	T^38T^2	684	612	1.41
6.748-2	T^38T^2	684	612	0.37
	Total	—	—	8.53

aThis molecule is most possibly T³₆D²₂ but could be T³₆T².
bThis molecule is most possibly T³₄T²D²₂ but could be T³₄T²₂.