美国polysciences公司Polyethylenimine23966-2现货促销!
Polyethylenimine,Linear(MW25,000)
CatalogNo:23966-2PackagingSize:2g
CASNumber: 9002-98-6
Linearpolyethylenimines(PEIs)containallsecondaryamines,incontrasttobranchedPEIswhichcontainprimary,secondaryandtertiaryaminogroups.ThelinearPEIsaresolidsatroomtemperaturewherebranchedPEIsareliquidsatallmolecularweights.Solubleinhotwater,coldwateratlowpH,methanol,andethanol.Oneendofthepolymerchainmethyl;otherendhydroxyl.Containsupto7-8%ofpoly(2-ethyl-2-oxazoline)Insoublein:benzene,ethylether,acetoneandcoldwater.
Formula:
(C2H5N)x
MolecularWeight:25,000
MeltingPoint:73-75º
TSCA
Hazards:Unknown
Handling:Gloves&fumehood
Storage:Storeatroomtemperature
Code:U5g-(hazard/handling/storagecodes)
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