Diisopropyl percarbonate

Fig. 1. Bulk polymerization of diethylene glycol bis(aHylcarbonate) at 45°C with initial addition of 3.0% diisopropyl percarbonate. Rates of polymerization as measured by density and catalyst consumption decrease with time at a given temperature (14).

Many proprietary methods have been developed for casting and shaping DADC, especially for lenses. In one method DADC containing 3.5% diisopropyl percarbonate is prepolymerized by warming to a symp of viscosity 40—60 mm /s (=cSt) (15). Polymerization is continued in a lens for 18 h at 90°C followed by annealing at 120°C. 

Chemical Designations - Synonyms Diisopropyl percarbonate Diisopropyl peroxydicarbonate Isopropyl peroxydicarbonate Peroxydicarbonic acid, bis (1-methylethyl) ester Peroxydicarbonic acid, diisopropyl ester Chemical Formula C3H7OOCOOCOOC3H7. 

I. J-Diisocyanatotoluene Diisodecyl Phtbalate Diisopropanolamine Diisopropyl Ether Diisopropyl Oxide Diisopropyl Percarbonate Diisopropyl Peroxydicarbonate Sym-Diisopropylacetone Diisopropylamine... 

Diisopropyl oxide. See Isopropyl ether Diisopropyl percarbonate. See Diisopropyl perdicarbonate Diisopropyl perdicarbonate CAS 105-64-6... 

Diisodecyl Phthalate Diisopropanolamine Diisopropyl Ether Diisopropyl Oxide Diisopropyl Percarbonate... 

Chloroformates are versatile, synthetic intermediates, based on the affinity of the chlorine atoms for active hydrogen atoms. Chloroformates should be considered as intermediates for syntheses of pesticides, perfumes, dmgs, polymers, dyes, and other chemicals. Some of these products, eg, carbonates, are used as solvents, plastici2ers, or as intermediates for further synthesis. A significant use of chloroformates is for conversion to peroxydicarbonates, which serve as free-radical initiators for the polymeri2ation of vinyl chloride, ethylene, and other unsaturated monomers. The most widely used percarbonate initiators are diisopropyl peroxydicarbonate (IPP), di-2-ethyIhexylperoxydicarbonate (2-EHP), and di-j -butylperoxydicarbonate (SBP). The following Hst includes most of the commercially used percarbonates. 

Diisopropyl (IPP) percarbonate, 6 303 Diisopropylamine, 2 537t ACGIH TLV, 2 548t physical and chemical properties of, 2 540t... 

SYNS DIISOPROPYL PEROXYDICARBONATE ISOPROPYL PERCARBONATE ISOPROPYL PEROXYDICARBONATE PEROXYDICARBONATE d ISOPROPYLE PEROXYDICARBONIC ACID, BIS(1-METHYLETHYL) ESTER... 

Beilstein Handbook Reference) Bisisopropyl peroxydicarbonate BRN 1786996 Diisopropyl perdicarbonate Diisopropyl peroxy-dicarbonate Diisopropyl peroxydiformale EINECS 203-317-4 HSDB 349 Isopropyl percarbonate Isopropyl peroxydicarbonate Luperox IPP Peroxydicarbonate d isopropyle Petoxydicarbonic acid, bis(l-methylethyl) ester Peroxydicarbonic acid, diisopropyl ester. 

If diisopropyl peroxydicarbonate (also known as isopropyl percarbonate or DIPP) is used in a single temperature process, the polymerization may be carried... 

Isopropyl pentanoate. See Isopropyl valerate Isopropyl percarbonate Isopropyl peroxydicarbonate. See Diisopropyl perdicarbonate... 

One of the ways that aqueous emulsion polymerization processes can be classified is on the basis of the types of the initiators also referred to as catalysts. In one type of polymerization system, an organic peroxide, preferably water-soluble, is used. The organic peroxides include cumene hydroperoxide, diisopropyl benzene hydroperoxide, triisopropyl benzene hydroperoxide, and tertiary butyl hydroperoxide. A second type of emulsion polymerization employs an inorganic peroxide. Suitable compounds include perborates, persulfates, perphosphates, percarbonates, barium peroxide, zinc peroxide, and hydrogen peroxide. Specific examples of inorganic peroxides are ammonium persulfate and sodium perphosphate. 

---