Ethyl Methacrylate → 2-Hydroxypropyl methacrylate

Temperatur

40 °C

A polymer feed solution was prepared by combining 30.76 g methylanthracene methacrylate monomer, 16.6 g 3-hydroxypropyl methacrylate monomer, 16.0 g ethyl methacrylate, and 50 g propylene glycol monomethyl ether acetate (PGMEA) in a 250 ml three neck, round-bottom flask fitted with a mechanical stirrer, thermal controller, thermal probe, heating mantle and nitrogen purge inlet (sweep). The reaction mixture was heated until the temperature of the reaction mixture reached 80° C. 16.15 g PGMEA solution containing 10 wt % Vazo 67 azo initiator (white powder, Dupont) was next added to the flask. The flask was heated until the temperature of the reaction mixture reached 90° C. and maintained for 8 hours with stirring. Heating was stopped and the reactor was allowed to cool down to 40° C. The resulting polymer solution was precipitated with methyl alcohol (10× excess of reaction mixture), filtered and vacuum dried, to provide Poly(ANTMA-co-HPMA-co-EMA) polymer [Mw=8K; PDI=2.5; ANTMA:HPMA; EMA=30:30:40 mol %, by 13C-NMR].

1. customA polymer feed solution was prepared
2. customfitted with a mechanical stirrer
3. temperaturethermal controller, thermal probe, heating mantle and nitrogen
4. custompurge inlet (sweep)
5. temperatureThe reaction mixture was heated until the temperature of the reaction mixture
6. customreached 80° C
7. addition16.15 g PGMEA solution containing 10 wt % Vazo 67 azo initiator (white powder, Dupont)
8. additionwas next added to the flask
9. temperatureThe flask was heated until the temperature of the reaction mixture
10. customreached 90° C.
11. temperaturemaintained for 8 hours
12. temperatureHeating
13. customThe resulting polymer solution was precipitated with methyl alcohol (10× excess of reaction mixture)
14. filtrationfiltered
15. customvacuum dried

ORD-Eintrag

ord-c9da4760507f4314a70b74da3feaa588

Quelldatensatz

uspto-grants-2016_04

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US09324604B2