아지리딘 호모중합체

아지리딘 호모중합체 속성

아지리딘 호모중합체 C화학적 특성, 용도, 생산

화학적 성질

Clear viscous liquid

용도

Polyethyleneimine is used as a polyelectrolyte multilayer on charged surfaces to provide a biocompatible coating on surfaces.1Detergents, adhesives, water treatment, printing inks, dyes, cosmetics, and paper industry, adhesion promoter, lamination primer, fixative agent, flocculant, cationic dispersant, stability enhancer, surface activator, chelating agent, scavenger for aldehydes and oxides.

주요 응용

Polyethyleneimine(PEI) can be used as a non-viral synthetic polymer carrier for in vivo delivery of therapeutic nucleic acids. The interaction between the negatively charged nucleic acid and the positively charged polymer backbone leads to the formation of nanoscale complexes. This neutralising complex protects the enclosed nucleic acid from enzymes and maintains its stability until cellular uptake occurs. For example, human serum albumin-coupled PEI shows good pDNA transfection and low toxicity.
PEI can be used to functionalize single-walled nanotubes (SWNTs) to improve their solubility and biocompatibility while maintaining the structural integrity of the original SWNT. Covalently functionalized SWNTs can be used for CO2 uptake and gene delivery.
Branched PEI can also be used to modify the surface properties of adsorbents. PEI-modified aqueous zirconia/PAN nanofibres have a high fluoride adsorption capacity and a wide working pH range, and can therefore be used for groundwater defluoridation.

생산 방법

Polyethylenimine is produced by the homopolymerization of ethylenimine. The reaction is catalyzed by acids, Lewisacids, or haloalkanes. The polymerization is usually carried out at 90 – 110 ℃ in water or in a variety of organic solvents. The average molecular mass of the polyethylenimine prepared as described above is 10 000 – 20 000. Higher molecular mass polymers are prepared by addition of a difunctional alkylating agent, such as chloromethyloxirane or 1,2-dichloroethane. Polyethylenimines with a higher average molecular mass can also be provided by ultrafiltration of polymers with a broad mass distribution. Likewise, polymers of lower molecular mass can be obtained by inclusion of a low molecular mass amine, such as 1,2- ethanediamine, during polymerization. By using these techniques a range of molecular masses from 300 to 10 6 can be obtained. Cross-linking during the polymerization of ethylenimine in organic solvents leads to solid polyethylenimines. Furthermore the polymerization process can be conducted on the surface of organic or inorganic materials, thus fixing the polyethylenimines to a support.

일반 설명

All polyethylene imine polymers are hydrophilic and may contain approx. 30% hydrated water.

상품명

Lupasol, Polymin, Catiofast, Lugalvan (BASF), Epomin (Nippon Shokubai).

생물학적 활성

Polyethylenimine is nondegradable and the molecular weight of PEI affects the cytotoxicity and gene transfer activity. Polyethylenimine acts as a low toxicity and efficient gene vector. 

Structure and conformation

Polyethyleneimine(PEI) exists as both a branched and linear structure. Branched PEI (bPEI) is synthesized via acid-catalyzed polymerization of aziridine, whereas the linear structure (lPEI) is synthesized via ring opening polymerization of 2-ethyl-2-oxazoline followed by hydrolysis.

아지리딘 호모중합체 준비 용품 및 원자재

원자재

준비 용품

아지리딘 호모중합체 공급 업체

공급자	전화	이메일	국가	제품 수	이점
Wuhan Bright Chemical Co., Ltd	+86-02785804899 +86-15071395570	alice@brightchemical.com.cn	China	93	58
Hebei Kingfiner Technology Development Co.Ltd	+86-15532196582 +86-15373005021	lisa@kingfinertech.com	China	3010	58
Hebei Weibang Biotechnology Co., Ltd	+8615531157085	abby@weibangbio.com	China	8810	58
Shaanxi Dideu Medichem Co. Ltd	+86-29-81148696 +86-15536356810	1022@dideu.com	China	3882	58
Hebei Mojin Biotechnology Co., Ltd	+86 13288715578 +8613288715578	sales@hbmojin.com	China	12840	58
Shanghai UCHEM Inc.	+862156762820 +86-13564624040	sales@myuchem.com	China	7514	58
Hebei Chuanghai Biotechnology Co,.LTD	+86-13131129325	sales1@chuanghaibio.com	China	5892	58
Hebei Weibang Biotechnology Co., Ltd	+8617732866630	bess@weibangbio.com	China	18153	58
Hebei Zhuanglai Chemical Trading Co.,Ltd	+8613343047651	admin@zlchemi.com	China	3002	58
Shandong Deshang Chemical Co., Ltd.	+86-0531-8875-2665 +8613153039501	info@deshangchem.com	China	662	58

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