Patent ID: 9701794
Date: 2017-07-11
CPC Classifications: C08F,C08G,C09D

Claim:
1. A method for preparing a main chain scission-type polysilyl (meth)acrylate resin, comprising: mixing monomers including a cyclic monomer, a vinyl monomer, and a vinyl silyl ester monomer in a solvent at a formulation ratio; and adding to the solvent a composite initiator in a mass percentage of 0.01 to 5% based on the total amount of the monomers, and reacting at a temperature of 25 to 150° C. under the protection of argon or nitrogen gas to prepare the main chain scission-type polysilyl (meth)acrylate resin, wherein the monomers include 5 to 95% by mass of cyclic monomer, 0 to 90% by mass of vinyl monomer, and 5-95% by mass of vinyl silyl ester monomer; the solvent is one or more of tetrahydrofuran, dimethyl formamide, dimethyl acetamide, butyl acetate, toluene, xylene, acetone, and n-butanol; the cyclic monomer is one or more of lactide, glycolide, caprolactone, 2-methyl-ε-caprolactone, 2-chloro-ε-caprolactone, butyrolactone, valerolactone, 2-methylene-1,3-dioxepane, ethylene carbonate, propylene carbonate, tri-methylene cyclic carbonate, 2,2-dimethyl trimethylene cyclic carbonate, dimethylaminotrimethylene cyclic carbonate, 2-ethyl-2-oxazoline, 2-methyl-2-oxazoline, five-membered ring phosphate, six-membered ring phosphate, epoxy ethane, epoxy propane, epoxy chloropropane, and γ-glycidyloxypropyltrimethoxy silane; the vinyl monomer is one or more of acrylic acid, methacrylic acid, methyl methacrylate, ethyl methacrylate, butyl methacrylate, octyl methacrylate, methyl acrylate, ethyl acrylate, butyl acrylate, octyl acrylate, dodecafluoroheptyl methacrylate, acrylamide, methacrylamide, methylol acrylamide, isopropyl acrylamide, ethylene glycol methacrylate, hydroxyethyl acrylate, hydroxyethyl methacrylate, glycidyl methacrylate, styrene, dimethylaminoethyl methacrylate, diethylaminoethyl methacrylate, vinylpyrrolidone, tetravinylpyridine, acryloyloxyethyldimethylbenzyl ammonium chloride, methacryloyloxyethylbenzyldimethyl ammonium chloride, methacryloyloxyethyltrimethyl ammonium chloride, polysulfobetainemethyl methacrylate, and polycarboxybetainemethyl methacrylate; the vinyl silyl ester monomer is one or a mixture in any ratio of two or more of trimethylsilyl acrylate, triethylsilyl acrylate, isopropylsilyl acrylate, triphenylsilyl acrylate, tributyl silyl acrylate, tri-n-octylsilyl acrylate, trimethylsilyl methacrylate, triethylsilyl methacrylate, triisopropylsilyl methacrylate, triphenylsilyl methacrylate, tributylsilyl methacrylate, and tri-n-octylsilyl methacrylate; and the composite initiator includes one or more of phosphazene, phosphazene salt, phosphazene oxide, azobisisobutyronitrile and benzoyl peroxide.