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Experimental instrument for photo-initiated solution polymerization

An experimental instrument, photo-initiated technology, applied in the field of experimental instruments for photo-initiated solution polymerization, can solve the problem that the measurement distance cannot reveal the angle or shape of the focal plane

Active Publication Date: 2014-09-24
CHINA NAT OFFSHORE OIL CORP +1
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  • Description
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  • Application Information

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Problems solved by technology

However, the measured distance does not reveal the angle or shape of the focal plane applied to the material, and the energy of the optical radiation received by the material depends on these parameters, so the measured distance between the light source and the material to be polymerized is not enough to indicate the material received. light radiation energy

Method used

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  • Experimental instrument for photo-initiated solution polymerization
  • Experimental instrument for photo-initiated solution polymerization
  • Experimental instrument for photo-initiated solution polymerization

Examples

Experimental program
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Embodiment Construction

[0060] The experimental methods used in the following examples are conventional methods unless otherwise specified.

[0061] The materials and reagents used in the following examples can be obtained from commercial sources unless otherwise specified.

[0062] Such as figure 1 , figure 2 and image 3As shown, the photoinitiated solution polymerization experimental instrument provided by the present invention includes a chassis 100, which is made of white iron sheet that has a shielding effect on ultraviolet light, and its inner layer is coated with non-smooth, internally added ultraviolet absorber 2-hydroxyl -The black coating of 4-n-octyloxybenzophenone can absorb a large amount of ultraviolet light irradiated thereon, in order to prevent the impact on the accuracy of experimental data due to the reflection of light; thicker steel is used at the bottom of the cabinet 100, to increase its weight. A sliding support frame 103 is fixed on the bottom of the cabinet 100, which...

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Abstract

The invention discloses an experimental instrument for photo-initiated solution polymerization. The experimental instrument comprises a cabinet and is characterized in that a plurality of narrow-band ultraviolet lamps and a polymerization reaction vessel are arranged in the cabinet; a sliding bracket is arranged at the bottom of the cabinet, and the narrow-band ultraviolet lamps are vertically arranged on the sliding bracket; the polymerization reaction vessel is arranged in the moving direction of the narrow-band ultraviolet lamps, and a gap is formed between the narrow-band ultraviolet lamps and the polymerization reaction vessel; the polymerization reaction vessel can rotate around the axis of the polymerization reaction vessel, and the rotating speed is adjustable; and a light intensity sensor I and a light intensity sensor II are arranged in the moving direction of the narrow-band ultraviolet lamps and are respectively arranged at the two sides of the polymerization reaction vessel. According to the experimental instrument, the use and combination number of ultraviolet lamp sources can be controlled through adjusting and controlling the rotating angular velocity of a turntable, and the light radiation energy received by a polymerization system can be adjusted through adjusting the distance between light sources and a reaction device, so that a method for controlling primary-activity free radical generation rate by using multiple control manners is realized.

Description

technical field [0001] The invention relates to an experimental instrument for photoinitiated solution polymerization, and belongs to the technical field of photopolymerization synthesis of high polymers. Background technique [0002] Water-soluble ultra-high molecular weight polymers (molecular weight greater than 10 7 ) mainly refers to polyacrylamide (PAM) polymers, which are formed by homopolymerization of acrylamide or copolymerization with other monomers. High molecular weight polyacrylamide is mainly used as a flocculant and thickener ("Water-Soluble Polymer") Yan Ruixuan, Chen Zhenxing, etc., Chemical Industry Press, 1988). The synthesis of water-soluble ultra-high molecular weight polymers is a process of free radical polymerization or free radical copolymerization, which can be divided into thermally initiated polymerization and photoinitiated polymerization according to the different energy sources provided. In the process of thermally initiated polymerization, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F2/01C08F2/48
Inventor 冯茹森任涛孙建辉李华兵朱玥珺吕鑫李强
Owner CHINA NAT OFFSHORE OIL CORP
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