SU528305A1 - Polymerization method for polar vinyl monomers - Google Patents

Description

one

This invention relates to methods for the polymerization of monomers with polar groups or atoms. Polymerization products can be used as protective coatings.

A known method for the polymerization of monomers with polar groups or atoms, for example, derivatives of methacrylic acid in an electric field 1. In the known method, the process of polymerization of polar monomers — acrylic acid, methacrylic acid and their derivatives, is carried out in a constant electric field in an emulsion or in an inert solvent . The polymer yield is 25%. But polymerization products are soluble in the majority of organic solvents.

In order to reduce solubility in organic media and increase the purity and mechanical strength of polymerization products, a method is proposed that differs from the well-known fact that the polymerization process of monomers with polar groups or atoms is carried out under the conditions of a constant electric field filler. The amount of aerosol is 5-6 wt. % (by weight of monomer).

In contrast to the known method, this technique allows to obtain crosslinked polymers. As polar monomers,

esters of methacrylic or maleppnogo knslot. carboxyl groups containing chlorine, amino-plots, for example, digestplaminpoetllmethacrylate, p-chloroethylmethacrylate, mono: displacentane. As a result, pritzhek of sysuode protons aijnJCll.ia to polar,:; n

monomers of yo io / kei razr1) 1n double1; 1 nd with :; l; 1 molecule of monomer, hgp n i 5 ls prshshlo: polymerization, llpii volume formed lijiciTi raspovlepnye ciniiTi.e.: 1 ienk with opps;: t; coated polymeric structures. Formula - agpi; cross-linked polymers are accompanied by sweating:: iOctIl -, most oiiraii; i: eeK :; a solvent that expands possible; : :) ;; application of second-hand materials). п: on as a single coating: me :: 1,:. 1 ical surfaces in organic media.

Polymeric materials. obtained: i; l; l: l method:.;, are more pro-iaz:: by virtue of y; 10 d; and; acute CTpyix Tyy i-v; and xiniii AV qp more clean. as pro;: ess sex ;; L e-) ;; The event proceeds in the absence of onoviv piirc.-:. which is known; way: ;; gp; :: and to: dukt.

PREMIER Di: .e1i.: 1alP1NO tp.1meta 1) 1i i: i g; Aerosil taken in the amount of 5 pes. ;:; ; v;,; couple on the lumer) mix ;; square ; ; 3 plates to) iectopa. to k

You can adjust the thickness of the polymer coating. The strength of the electric voltage; I; I is 5 kV / cm. Full-Squad Process: Scientific research institutes are carried out for 2 hours at room temperature. The degree of monomer conversion is 94%. Styrene, methyl methacrylate, nzobutyl. Methacldatum under these conditions are not fully immersed, because of. for carrying out the polymerization process in the presence of napolpnt. g conditional and x action of a constant electric field

iooohod :: l: o presence nol rpog. group or atom (--OH.X. Ci). Oj; o; r-: aiine nrots.cht. polymer 11, aini 1; they control padelia of the spinal purity to a constant.;: acs11i and nrn constant ng. :: rn-yustn electric iol. The kinetics of the change of the current strength during the process of iolyleneization of dimethylaminoethylmethacrylate to the presence of aerosil predetavlsp in the table. one.

Table 1

Some physical, chemical and mechanical covers are represented by 5 tab. 2. Properties of the proposed polymer sheets 11 a. C and a 2