Free radical polymerization initiator composition and its application
A polymerization initiator and composition technology, applied in the preparation of high molecular compound vinyl ether-butenedioic anhydride copolymer, in the field of free radical polymerization initiator composition, can solve product quality, safety hazards, and adverse effects on the environment , Solvent residues and other issues, to achieve the effect of less hidden dangers to workers' health, avoid side reactions, and long time at low temperature
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Embodiment 1
[0067] The preparation of embodiment 1 initiator composition 5a (1: 1 type)
[0068] Add 50g of di(2-ethyl)hexyl oxidized dicarbonate (EHP, 60% toluene solution, stored at -15°C) into a 100mL three-necked flask, cool it with dry ice / acetone to below -20°C, and slowly add 30g of decathyl peroxide Diacyl (LPO), wait for the solution to become a homogeneous phase, transfer and refrigerate (<-15°C) for later use.
Embodiment 2
[0069] The preparation of embodiment 2 initiator composition 1b (4: 1 type)
[0070] Mix TBCP and ABIN uniformly according to the mass ratio of 4:1 to obtain composite initiator 1b (4:1 type).
Embodiment 3
[0071] The preparation of embodiment 3 initiator composition 2e (1: 1 type)
[0072] Referring to the preparation method of Example 1, DCPD / DBPB was prepared with a mass ratio of 1:1.
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