Synthesis and characterization of poly(p-xylylene tetrasulfide) via interfacial polycondensation in the presence of phase transfer catalysts

Figures & data

Figure 1 Raman spectra of Na₂S_4.

Scheme 1 The schematic representation of the reaction mechanism.

Figure 2 FT-IR spectra of 1,4-Bis(chloromethyl)-benzene and polysulfide polymer.

Figure 3 DSC plot of poly(p-xylylene tetrasulfide) polymer.

Figure 4 XRD pattern of prepared polysulfide polymer.

Figure 5 TGA-DTA trace of poly(p-xylylene tetrasulfide).

Figure 6 Friedman plots for the thermal degradation of poly(p-xylylene tetrasulfide).

Table 1. The influence of PTC’s type on the amounts of synthesized polymer.

	Reaction temperature/°C	Reaction time/min	Polymer/g
No PTC	80	60	1.18
TBAB	80	60	2.02
BTEACl	80	60	0
MTBACl	80	60	0

Figure 7 Effect of the variation of the TBAB concentration on the polymer yield.

Figure 8 ¹H NMR spectra of synthesized polysulfide polymer.

Figure 9 Swelling behavior of polymer at 25 °C after 1 month.