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Pyrrolyl modification complex function polymeric adsorbent and manufacture method thereof

A technology of adsorption resin and composite function, which is applied in the field of pyrrolyl-modified composite functional adsorption resin and its preparation, to achieve the effects of improved thermal stability, good affinity, and broad application prospects

Inactive Publication Date: 2011-03-23
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Literature search shows that the pyrrolyl-modified composite functional adsorption resin and its preparation method have not been reported in the literature.

Method used

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  • Pyrrolyl modification complex function polymeric adsorbent and manufacture method thereof
  • Pyrrolyl modification complex function polymeric adsorbent and manufacture method thereof
  • Pyrrolyl modification complex function polymeric adsorbent and manufacture method thereof

Examples

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Embodiment 1

[0022] Take 30g of chlorine balls with a cross-linking degree of 8% (produced by Hebei Langfang Electric Power Resin Factory, etc., with a chlorine content of 18%), add 60ml of nitrobenzene and dissolve it in a 250ml three-necked bottle for 12h; heat up at a speed of 1°C / 2min To 80°C, add 2g of zinc chloride at a certain stirring speed, and continue the reaction until the residual chlorine content of the resin is 12%, to obtain polystyrene-divinylbenzene adsorption resin; exhaust the reaction mother liquor, and use 600ml formal and methanol to wash the above polystyrene resin. Add 60ml of o-dichlorobenzene to swell for 12 hours; control the temperature of the solution at 40°C, and continuously add 80ml of pyrrole dropwise at a stirring speed of 110rpm to continue the reaction for 8 hours, take it out and filter, rinse with 4% hydrochloric acid by weight, and extract , dried, the resulting product is pyrrolyl-modified composite functional adsorption resin, the resin pyrrolyl co...

Embodiment 2

[0025] Take 30g of chlorine balls with a cross-linking degree of 8% (produced by Hebei Langfang Electric Power Resin Factory, etc., with a chlorine content of 18%), add 60ml of nitrobenzene and dissolve it in a 250ml three-necked bottle for 12h; heat up at a speed of 1°C / 2min To 80°C, add 2g of zinc chloride at a certain stirring speed, continue to react until the residual chlorine content of the resin is 15%, and obtain polystyrene-divinylbenzene adsorption resin; exhaust the reaction mother liquor, and use 600ml of methylal and Methanol washed the above polystyrene resin. Add 60ml of o-dichlorobenzene to swell for 12 hours; control the temperature of the solution at 40°C, and continuously add 10ml of pyrrole dropwise at a stirring speed of 110rpm to continue the reaction for 8 hours, take it out and filter, rinse with 4% hydrochloric acid by weight, and extract , and dried, the resulting product is pyrrolyl-modified composite functional adsorption resin, the resin pyrrolyl c...

Embodiment 3

[0028] Take 30g of chlorine balls with a cross-linking degree of 8% (produced by Hebei Langfang Electric Power Resin Factory, etc., with a chlorine content of 18%), add 60ml of nitrobenzene and dissolve it in a 250ml three-necked bottle for 12h; heat up at a speed of 1°C / 2min To 80°C, add 2g of zinc chloride at a certain stirring speed, and continue to react until the residual chlorine content of the resin is 12%, to obtain polystyrene-divinylbenzene adsorption resin; exhaust the reaction mother liquor, and use 600ml of methylal and Methanol washed the above polystyrene resin. Add 60ml of nitrobenzene to swell for 12 hours; control the temperature of the solution to 40°C, and continuously add 80ml of N-methylpyrrole dropwise at a stirring speed of 110rpm to continue the reaction for 8 hours, take it out and filter, rinse with 4% hydrochloric acid by weight , extracted, and dried, the resulting product is N-methylpyrrolyl modified composite functional adsorption resin, the resi...

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Abstract

The invention relates to a pyrryl modified bi-functional polymeric adsorbent with the structural unit shown in the drawing, wherein R is shown in the drawing. The specific surface area of the bi-functional polymeric adsorbent is 50 to 1600 m<2> / g, the pore volume is 0.01-1.0 cm<3> / g, and the exchange capacity is 0.1-5.0 mmol / g. The preparation method for the resin is that chloromethylated beads are swelled in solvents such as nitrobenzene, etc. to add catalyst to obtain polystyrene-divinyl benzene adsorbent; reaction mother solution is exhausted and residual solvent and catalyst are washed away; swelling is carried out by adding in the functionalized pyrryl agent, so as to further react with the residual chloromethyl on the internal and external surfaces of the resin to obtain the pyrryl modified bi-functional polymeric adsorbent. The resin has dual functions of absorbing and ion exchanging (coordination). The resin also has hydrophilic property, alkali pyrryl functional groups and hydrophobic styrene frame and has excellent affinity for amphoteric bioreagents such as protein; and the acid-base interaction between the pyrryl functional groups and acid organic materials is particularly in favor of the separation of acid organic materials.

Description

technical field [0001] The invention relates to a pyrrolyl-modified composite functional adsorption resin and a preparation method thereof. Background technique [0002] In recent years, due to the characteristics of high specific surface area, diverse surface chemistry, and high mechanical strength, composite functional polystyrene resins have been increasingly widely used in water purification, drug extraction, and chromatographic separation technologies. In 2001, Nanjing University applied for the patent (ZL0134143.2) of "A Synthetic Method of Ultra-highly Crosslinked Weak Base Anion Exchange Resin with Dual Functions". The main steps are: a) using liquid paraffin and 200# solvent oil to make Pore ​​agent, one or several mixtures of magnesium carbonate, gelatin, polyvinyl alcohol, etc. are used as dispersant, styrene is used as monomer, divinylbenzene is used as crosslinking agent, benzophthalein peroxide is used as initiator, and suspension polymerization method is adopt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J9/36C08J7/12C08L25/08C08K5/3415B01J20/30B01J20/26
Inventor 张炜铭潘丙才吕路张全兴陈金龙
Owner NANJING UNIV