Industry Share: Preparation of a parent modified acrylate copolymer adhesive 6

1. Preparation of amphiphilic oligomers

13g octadecyl alcohol, 4g maleic anhydride, and 35g toluene were mixed evenly and poured into a round-bottom flask; Octadecyl maleate was obtained by reaction at 90℃ for 13h. 5g octadecyl maleate monoester, 6.5g polyethylene glycol 600, 0.2g p-toluene sulfonic acid, and 50g toluene were poured into a round-bottom flask, mixed evenly, and reacted at 80℃ reflux temperature for 22h to obtain amphiphilic oligomers.

2. Acrylate copolymer adhesive preparation

• (1) Take 7.5g methyl methacrylate, 10g acrylic acid, 45g toluene, 20g ethanol, and 8g acetone mixed evenly; Then, 8g dimethylacryloxy (trimethyl) hexamethyldiurethane, 1g bisphenol A vinyl alcohol methyl diacrylate, 1.5g diisobutyronitrile were added in the stirring state at 90℃ for 4h;
• (2) Adding 9g amphiphilic oligomer, 1.2g polyethylene glycol diallyl ester, 0.1g ethylenediamine, 1.1g sodium p-toluene sulfite, stirring reaction at 80℃ for 5h;
• (3) Add 0.2g sodium phosphate, 0.1g phthalic acid, 0.5g citric acid, 0.4g phosphate PM1000, 0.1g phosphate PM3060, 3g glass powder, and 5g silicon dioxide successively, and stir until evenly dispersed;
• (4) In stirring state, vacuum, parental oligomer block modified acrylate copolymer adhesive.