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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

Inactive Publication Date: 2012-10-24
NANJING HUASHI NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0023] U.S. patents US2744098, US282182, US3532771, US4900809, US4948848, US4962185, US5003014, US5034487, etc. all provide a polymerization reaction using an aromatic solvent (benzene or toluene) as a medium, which will inevitably produce solvent residues, which will seriously affect product quality and safety. hidden dangers, and at the same time, the production process will also cause adverse effects on the environment

Method used

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  • Free radical polymerization initiator composition and its application
  • Free radical polymerization initiator composition and its application
  • Free radical polymerization initiator composition and its application

Examples

Experimental program
Comparison scheme
Effect test

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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Abstract

The invention belongs to the chemical engineering field, and relates to a free radical polymerization initiator composition and its application. The free radical polymerization initiator composition is obtained through compounding a low temperature initiator having a decomposition temperature which is lower than 60DEG C and a high temperature initiator having a decomposition temperature which is higher than 70DEG C. The application is the application of the free radical polymerization initiator composition in the preparation of an alkenyl ether (ester)-maleic anhydride copolymer, wherein the mass of the free radical polymerization initiator composition accounts for 0.01-1.0% of the total mass of a reaction system. The initiator composition which allows the low temperature polymerization time of a polymerization reaction to be prolonged and the high temperature polymerization time to be reduced is benefit for the stationary reaction generation, and enables the total polymerization time to be shortened and the production energy consumption to be low; and the prepared polymer has the advantages of good quality, high viscosity and environmental protection.

Description

technical field [0001] The invention belongs to the field of chemical engineering, and relates to a free radical polymerization initiator composition and its application, in particular to a free radical polymerization initiator composition and its use in the preparation of macromolecular compound vinyl ether (ester)-butenedioic anhydride copolymer in the application. Background technique [0002] Polybutenedioic anhydride has strong adhesion and excellent scale-inhibiting performance, and the polymer compound obtained by copolymerizing butenedioic anhydride and vinyl substances has a unique scale-inhibiting effect, which can inhibit certain zinc salts, calcium Salt scale deposits. This kind of copolymer combines the advantages of polybutene dioic anhydride and polymerized olefin, and is an excellent adhesive material and scale inhibitor. It is widely used in the modification of polymer compounds and has a broad market prospect. For example: butenedioic anhydride is grafted...

Claims

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Application Information

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IPC IPC(8): C08F4/38C08F4/34C08F4/04C08F216/20C08F218/08C08F222/06
CPCC08F4/38C08F222/06C08F216/18
Inventor 苏桂珍李华山史鲁秋李红兵
Owner NANJING HUASHI NEW MATERIAL
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