Cationic functional vinyl chloride polymer and preparation method thereof

A technology of vinyl chloride and cation, which is applied in the field of cationic functionalized vinyl chloride polymer and its preparation, which can solve the problem of low content of copolymerization components, limited application range of vinyl chloride polymer materials, and low content of water-soluble monomer components and other issues to achieve the effect of broadening the variety

Active Publication Date: 2016-10-05
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There has never been a water-soluble positively charged monomer copolymerized with vinyl chloride monomers in the existing vinyl chloride copolymers, so the existing vinyl chloride copolymers cannot be specially used to prepare antibacterial materials
And the comonomers in the existing vinyl chloride copolymers are mostly oil-soluble monomers (such as vinyl acetate, acrylate, etc.), and the copolymerization content can reach 10-20wt%; anhydride, acrylic acid, etc.), but since the vinyl...

Method used

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  • Cationic functional vinyl chloride polymer and preparation method thereof
  • Cationic functional vinyl chloride polymer and preparation method thereof
  • Cationic functional vinyl chloride polymer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0126] Synthesis of Cationic Functionalized Vinyl Chloride Polymer P1:

[0127] 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, feed air for 5 minutes, vacuumize and fill with nitrogen repeatedly three times, then add 29.5g of trimethylallyl ammonium chloride, copper 5g, cuprous chloride 5g, 2,2'-bipyridine (bpy) 16g, then temperature controlled at 60°C, reacted for 24 hour...

Embodiment 2

[0141] Synthesis of Cationic Functionalized Vinyl Chloride Polymer P2:

[0142] P2 synthetic process with reference to embodiment 1. The formula is shown in Table 1 and the process parameters are shown in Table 2.

[0143] 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; the molecular weight, molecular weight distribution and content of cationic functional monomer components in the polymer of P2 are shown in Table 4.

Embodiment 3

[0145] Synthesis of Cationic Functionalized Vinyl Chloride Polymer P3:

[0146] 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.

[0147] 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 cationic functional monomer components in the polymer of P3 are shown in Table 4.

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Abstract

The invention discloses a cationic functional vinyl chloride polymer and a preparation method thereof. The functional vinyl chloride polymer is a cationic functional vinyl chloride polymer prepared by the steps of: taking a chlorine-containing monomer, a graftable active monomer and a hydrophilic functional monomer as copolymerization monomers, firstly polymerizing, in a water phase dispersion system, the copolymerization monomers into an active precursor polymer of which the main chain contains an atom transfer free radical polymerization active side group, then initiating a cationic functional monomer by using the active side group on a solid liquid interface to perform interface atom transfer free radical polymerization, and performing polymerization to form the cationic functional vinyl chloride polymer containing a cationic type side chain. The cationic type side chain contains quaternary ammonium salt type and quaternary phosphonium salt type groups, has a very strong charge positive electrical property, and enables the polymer to have very strong antibacterial performance, hydrophilic performance and anion exchange absorbing performance, and the polymer can be applied separately to preparation or together with other resin to blending preparation of a high-hydrophilicity antibacterial separation membrane product, a battery diaphragm, an anion exchange adsorbing material and an antibacterial coating, so that the application range of vinyl chloride type polymers is greatly broadened; and in comparison with an existing material, the polymer is good in hydrophilicity, is antibacterial, and is good in application prospect.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a cationic functionalized vinyl chloride polymer and a preparation method thereof. Background technique [0002] PVC is a non-toxic, odorless white powder. It has good chemical stability and good plasticity. Except for a few organic solvents, it can resist acid, alkali and salt at room temperature; PVC has poor thermal stability and light resistance, and it can start to decompose and change color above 140 °C. Based on the above characteristics, PVC is mainly used in the production of profiles, profiles, pipe fittings, plates, sheets, cable sheaths, hard or soft tubes, blood transfusion equipment, and films. And in the process of use, through continuous research and modification, the application field of PVC has been greatly expanded. [0003] Polyvinylidene chloride has the characteristics of flame resistance, corrosion resistance and good air tightness. Due to i...

Claims

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Application Information

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IPC IPC(8): C08F259/04C08F259/06C08F226/02C08F220/34C08F230/02C08L51/00
Inventor 朱宝库王纳川姚之侃李彤方立峰崔月包永忠王俊朱利平
Owner ZHEJIANG UNIV
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