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Hydrophobic/hydrophilic crosslinked polydivinylbenzene/polyacryl polyethylene polyamine interpenetrating polymer network and preparation method thereof

A technology of polyacrylamide polyvinylpolyamine and polydivinylbenzene, which can be used in chemical instruments and methods, other chemical processes, etc., and can solve problems such as few research reports.

Inactive Publication Date: 2013-09-25
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few reports on the hydrophobic / hydrophilic IPN composed of hydrophobic cross-linked polymers and hydrophilic cross-linked polymers.

Method used

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  • Hydrophobic/hydrophilic crosslinked polydivinylbenzene/polyacryl polyethylene polyamine interpenetrating polymer network and preparation method thereof
  • Hydrophobic/hydrophilic crosslinked polydivinylbenzene/polyacryl polyethylene polyamine interpenetrating polymer network and preparation method thereof
  • Hydrophobic/hydrophilic crosslinked polydivinylbenzene/polyacryl polyethylene polyamine interpenetrating polymer network and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Preparation of cross-linked polydivinylbenzene (PDVB) macroporous microspheres: add 200mL of 1wt% PVA aqueous solution to a 500mL three-necked flask equipped with a reflux condenser, a thermometer and a mechanical stirrer, raise the temperature to 45°C, and add a certain amount of Mixed oil phase of DVB, toluene (150% of DVB by mass), n-heptane (50% by mass of DVB) and benzoyl peroxide (1wt% of DVB), adjust the stirring speed, control the size of oil droplets, Slowly raise the temperature to 78°C for 1 hour of polymerization, then raise the temperature to 85°C for 2 hours of polymerization, continue to heat up to 95°C and cook the balls for 6 hours; pour out the product, wash with hot water and cold water respectively, and extract with petroleum ether for 24 hours to remove the porogen, and dry to obtain PDVB resin; the measured Brunauer-Emmett-Teller (BET) specific surface area of ​​PDVB is 616.1m 2 / g, the pore volume is 1.205cm 3 / g, the water absorption is 13.0wt%....

Embodiment 2

[0048] Preparation of PDVB: Add 200mL of 1wt%PVA aqueous solution into a 500mL three-necked flask equipped with a reflux condenser, a thermometer and a mechanical stirrer, raise the temperature to 50°C, and add a certain amount of DVB and toluene (the mass is 120% of DVB) under stirring. ), n-heptane (40% of DVB by mass) and benzoyl peroxide (0.5% of DVB by mass), adjust the stirring speed, and control the size of oil droplets; slowly heat up to 75°C for 1h, Then heat up to 85°C to polymerize for 2 hours, continue to heat up to 95°C to cook the balls for 6 hours; pour out the product, wash with hot water and cold water respectively, and extract with petroleum ether for 24 hours to remove the porogen, and dry to obtain PDVB resin; measure the BET of the resin The specific surface area is 566.8m 2 / g, the pore volume is 1.009cm 3 / g, the water absorption is 14.7wt%.

[0049] Preparation of PDVB / PMA IPN: Weigh a certain amount of PDVB resin, mix MA (mass is 180% of PDVB), TAIC ...

Embodiment 3

[0052] Preparation of PDVB: Add 200mL of 1wt%PVA aqueous solution into a 500mL three-necked bottle, heat up to 50°C, add a certain amount of DVB, toluene (150% of DVB by mass), n-heptane (70% of DVB by mass) under stirring ) and benzoyl peroxide (1.0% of DVB) mixed oil phase, adjust the stirring speed, control the size of oil droplets; slowly raise the temperature to 78°C for 1h polymerization, then raise the temperature to 85°C for 2h polymerization, continue to heat up to 95°C Boil the balls at ℃ for 6 hours; pour out the product, wash with hot water and cold water respectively, and extract with petroleum ether for 24 hours to remove the porogen, and dry to obtain the macroporous PDVB resin; the measured BET specific surface area of ​​the resin is 708.9m 2 / g, the pore volume is 1.439cm 3 / g, the water absorption is 14.8wt%.

[0053] Preparation of PDVB / PMA IPN: Weigh a certain amount of PDVB resin, mix MA (mass is 80% of PDVB), TAIC (mass is 20% of PDVB), butyl acetate (ma...

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Abstract

The invention discloses a hydrophobic / hydrophilic crosslinked polydivinylbenzene / polyacryl polyethylene polyamine interpenetrating polymer network and a preparation method thereof. The crosslinked polydivinylbenzene / polyacryl polyethylene polyamine interpenetrating polymer network is formed by penetrating crosslinked polyacryl polyethylene polyamine in crosslinked polydivinylbenzene macroporous microsphere. The preparation method disclosed by the invention comprises the following steps of: preparing the crosslinked polydivinylbenzene macroporous microsphere through suspension polymerization, crosslinking and polymerizing in the prepared crosslinked polydivinylbenzene macroporous microsphere to generate crosslinked polymethyl acrylate, carrying out amination reaction with polyethylene polyamine, and then, obtaining the hydrophobic / hydrophilic crosslinked polydivinylbenzene / polyacryl polyethylene polyamine interpenetrating polymer network. The preparation method disclosed by the invention is simple and low in cost; the prepared interpenetrating polymer network has a developed porous system, has special adsorptive selectivity on micromolecules having hydrophobic groups and hydrophilic groups simultaneously, and is especially applied to absorbing and separating micromolecules having hydrophobic and hydrophilic groups in solution at the same time.

Description

technical field [0001] The invention relates to a hydrophobic / hydrophilic cross-linked polydivinylbenzene / polyacrylpolyethylene polyamine interpenetrating polymer network and a preparation method thereof, belonging to the field of functional polymer synthesis. Background technique [0002] Interpenetrating polymer networks (IPN) are a type of polymer network in which two or more cross-linked polymers are interpenetrated and entangled through polymer chains. Due to the interpenetration between the two networks in the IPN, the degree of phase separation of the two polymers entangled is reduced, and they have forced compatibility, so they have unique forms such as biphasic continuity, cell-like structure, and interface interpenetration. The unique morphology makes the properties of IPN materials have significant synergy. [0003] The hydrophobicity or hydrophilicity of the two polymer networks that make up IPN are generally close or the same, at least not opposite. However, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F257/00C08F220/14C08F8/32C08J9/28C08L51/00C08F112/36C08F2/20B01J20/26
Inventor 黄健涵王小梅陈立妙梁晓磊查宏伟杨丽刘又年
Owner CENT SOUTH UNIV
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