Self-Assembly Investigations of Sulfonated Poly(methyl methacrylate-block-styrene) Diblock Copolymer Thin Films

Table 1

Macromolecular characteristics and estimated properties of the investigated PMMA-b-PS BCs.

ID	PMMA macroinitiator	PMMA-b-PS
	(kg·mol^−1)/Đ	(kg·mol^−1)/Đ
M1	8.4 / 1.12	-	-	-	-
M1_76/24	-	10.8 / 1.11	0.778	0.759	4.06
M1_55/45	-	14.6 / 1.14	0.575	0.549	5.44
M2	39.3 / 1.11	-	-		-
M2_56/44	-	66.7 / 1.17	0.589	0.563	24.9
M2_52/48	-	71.2 / 1.15	0.552	0.525	26.5
M3	42.8 / 1.09	-	-		-
M3_60/40	-	68.8 / 1.20	0.622	0.596	25.7
M3_69/31	-	68.1 / 1.27	0.712	0.689	22.5

= Number average molar mass
Đ = polydispersity
= mass fraction of the PMMA block
= Volume fraction of the PMMA block
· = Product of the Flory-Huggins interaction parameter and the total degree of polymerization. c was calculated at a temperature of 120°C which is the glass transition temperature of PMMA.