Anion functionalized vinyl chloride polymer and preparation method thereof
A technology for converting vinyl chloride and anion is applied in the field of anion-functionalized vinyl chloride polymer and its preparation, which can solve the problems of insignificant hydrophilic effect, limited application scope of vinyl chloride polymer materials, and improvement, etc. The effect of negative charge performance and cation exchange adsorption performance
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Embodiment 1
[0129] Synthesis of anionically functionalized vinyl chloride polymer P1:
[0130] Add 2000ml deionized water, additive polyvinyl alcohol (PVA) 1.2g, additive hydroxypropyl methylcellulose (HPMC) 0.4g, initiator peroxydicarbonate bis(2-ethylhexyl) in the stainless steel reaction kettle (EHP) 1g, evacuated and nitrogen filled repeatedly 3 times, then added 1500g of vinyl chloride, 27.6g of hydroxyethyl acrylate and 5g of allyl 2-bromo-2-methylpropionate, and pre-dispersed and stirred at room temperature for 30 minutes. The temperature was raised to a polymerization temperature of 47° C. to carry out a polymerization reaction. React for 12 hours, stop heating when the pressure drop in the kettle reaches 0.2MPa, vacuumize for 10 minutes, let air in for 5 minutes, vacuumize and fill with nitrogen three times, then add sodium bicarbonate to pH 8, add sodium acrylate 22.6g , copper 5g, cuprous chloride 5g, 2,2'-bipyridine (bpy) 16g, then temperature control 60 ℃, react for 24 hours...
Embodiment 2
[0146] Synthesis of anionic functionalized vinyl chloride polymer P2:
[0147] P2 synthetic process with reference to embodiment 1. The formula is shown in Table 1 and the process parameters are shown in Table 2.
[0148] The P2 structure and performance characterization methods are the same as those described in Example 1. The general formula of the P2 structural formula is the same as that of P1, and the parameters in the general formula are shown in Table 3;
Embodiment 3
[0150] Synthesis of anion-functionalized vinyl chloride polymer P3:
[0151] The synthesis process of P3 refers to Example 1. The formula is shown in Table 1 and the process parameters are shown in Table 2.
[0152] The P3 structure and performance characterization methods are the same as those described in Example 1. The general structure of P3 is the same as that of P1, and the parameters in the general formula are shown in Table 3; the molecular weight, molecular weight distribution and content of anion functionalized monomer components in the polymer of P3 are shown in Table 4.
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