Synthesis and characterization of copolysulfonate of 1,1′-bis(3-methyl-4-hydroxyphenyl)cyclohexane, bisphenol-A, and 4,4′-diphenyl disulfonyl chloride

Figures & data

Scheme 1 Copolysulfonate of 1,1’-bis(3-methyl-4-hydroxy phenyl) cyclohexane, bisphenol-A and 4,4’-diphenyl disulfonyl chloride.

Figure 1 IR (KBr pellet) spectrum of CPMCAD.

Figure 2 ¹H NMR (CDCl₃) spectrum of CPMCAD.

Table 1. The percent weight change with time for CPMCAD films in different environments at 35 °C.

Time (h)	HCl	H2SO4	HNO3	NaOH	KOH	NaCl	H2O
24	−3.37	−1.38	−0.73	1.47	1.86	−0.63	−3.32
48	−3.37	−2.08	−1.49	1.77	2.49	−2.56	−2.76
72	−3.37	−2.08	−2.22	1.77	2.49	−2.56	−2.76
96	−3.37	−2.77	−2.97	2.36	2.49	−3.21	−2.76
120	−4.05	−3.47	−4.37	−0.59	2.49	−3.21	−2.76
144	−4.05	−3.47	−4.37	−0.59	2.49	−3.21	−2.76
168	−2.72	0.69	2.97	−1.18	3.11	−1.91	−2.76
192	−2.72	0.69	2.97	−1.77	3.11	−1.92	−2.76
216	−2.72	0.69	2.97	−1.77	3.11	−1.92	−2.76
240	−2.72	0.69	2.97	−1.77	3.11	−1.92	−2.76
264	−2.72	0.69	2.97	−1.77	3.11	−1.92	−2.76

Figure 3 DSC thermogram of CPMCAD at the heating rate of 10 °C/min in an N₂ atmosphere.

Figure 4 TG thermogram of CPMCAD at the heating rate of 10 °C/min in an N₂ atmosphere.