FIELD: chemistry.
SUBSTANCE: method consists in the polymerisation of trioxane in a toluene medium in the presence of methylal, etherate of boron trifluoride in the reactor, equipped with a blade mixer at the rotation rate of 800 rpm, the temperature of polymerisation (40±2)°C and the duration of 4 hours.
EFFECT: obtaining highly dispersive dimethyl ether of polyoxymethyleneglycol with the weight average size of particles lower than 15 mcm in a solvent that does not destroy the ozone screen, reduction of energy and labour consumption due to the reduction of the polymerisation temperature and the time of exposure.
1 tbl, 9 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING FINELY DISPERSED DIMETHYL ETHER OF POLYOXYMETHYLENE GLYCOL | 2011 |
|
RU2471814C1 |
| METHOD FOR PRODUCTION OF POLYOXYMETHYLENE GLYCOL DIMETHYL ESTERS | 2003 |
|
RU2244723C1 |
| METHOD OF OBTAINING HIGHLY DISPERSIVE γ-POLYOXYMETHYLENE | 2011 |
|
RU2467023C1 |
| METHOD OF SYNTHESIS OF γ-POLYOXYMETHYLENE | 1999 |
|
RU2167888C2 |
| METHOD OF DETERMINATION OF DIMETHYL ESTERS OF POLYOXYMETHYLENE GLYCOLS IN TRIOXANE POLYMERS | 0 |
|
SU1755112A1 |
| METHOD OF OBTAINING TRIOXANE TERPOLYMERS | 0 |
|
SU1156601A3 |
| 0 |
|
SU239553A1 | |
| METHOD OF PREPARING POLYOXYMETHYLENES | 0 |
|
SU715586A1 |
| 0 |
|
SU238157A1 | |
| POLYTRIESTER OF PHENOL AND BORIC ACID AND METHOD FOR ITS PREPARING | 2006 |
|
RU2318005C1 |
