Nonionic functional vinyl chloride polymer and preparation method thereof

A vinyl chloride, non-ionic technology, applied in the field of non-ionic functionalized vinyl chloride polymer and its preparation, can solve the problems of limited application scope, inability to achieve hydrophilicity, low component content and the like

Active Publication Date: 2016-10-05
黄山徽梦高分子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the comonomers in the existing vinyl chloride copolymers are mostly oil-soluble monomers (such as vinyl acetate, acrylate, etc.), although the copolymer content can reach 10-20wt%, the obtained copolymers are very hydrophilic Difference
When using water-soluble monomers (such as maleic anhydride, acrylic acid, etc.) The content of water-soluble monomer components in the copolymer is particularly low, only below 5wt%, so that the vinyl chloride copolymers prepared in the prior art cannot achieve good hydrophilicity, and the content of water-soluble monomers is particularly low and its The content is not easy to control, which greatly limits its application range

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0127] Synthesis of non-ionic functionalized vinyl chloride polymer P1:

[0128] 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, 3g of hydroxyethyl acrylate and 46g 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 in air for 5 minutes, vacuumize and fill with nitrogen three times, then add 22g of methylolacrylamide, 5g of copper, chlorinated chlorinated Copper 5g, 2,2'-bipyridine (bpy) 16g, then control the temperature at 60°C, and react for 24 hours. The...

Embodiment 2

[0142] Synthesis of non-ionic functionalized vinyl chloride polymer P2:

[0143] Referring to Example 1 for the synthesis process of P2, the formula and process parameters are shown in Table 1 and Table 2 respectively.

[0144] The P2 structure and performance characterization methods are the same as those in Example 1. The general formula of the P2 structural formula is the same as that of P1, wherein the parameters in the general formula are as shown in Table 3; the molecular weight and molecular weight distribution of P2 are as shown in Table 4; 5.

Embodiment 3

[0146] Synthesis of non-ionic functionalized vinyl chloride polymer P3:

[0147] The synthesis process of P3 refers to Example 1, and the formula and process parameters are shown in Table 1 and Table 2 respectively.

[0148] The P3 structure and performance characterization methods are the same as those in Example 1. The general formula of the P3 structural formula is the same as that of P1, wherein the parameters in the general formula are as shown in Table 3; the molecular weight and molecular weight distribution of P3 are as shown in Table 4; 5.

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Abstract

The invention discloses a nonionic functional vinyl chloride polymer and a preparation method thereof. The functional vinyl chloride polymer is a nonionic functional vinyl chloride polymer prepared by the steps of: taking a fluorine-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 nonionic 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 nonionic functional vinyl chloride polymer containing a nonionic side chain. The nonionic functional vinyl chloride polymer prepared by the method disclosed by the invention has a high functional monomer content and good hydrophilicity, can be applied separately to preparation or together with other resin to blending preparation of a high-hydrophilicity separation membrane, a battery diaphragm, a biological medical material, a coating, a bonding material and a flexible easy-printing packing material, and in comparison with an existing material, the polymer is good in hydrophilicity, low in cost, and good in application prospect.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a non-ionic 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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F259/04C08F259/06C08F220/54C08F220/28C08F220/34C08F226/06C08L51/00
Inventor 朱宝库王纳川肖玲李彤赵斌姚之侃方立峰许云秋刘孝民
Owner 黄山徽梦高分子科技有限公司
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