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760943

Sigma-Aldrich

Poly(ethylene glycol), 8 acetylene dendron, generation 2

average Mn 21,000

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About This Item

UNSPSC Code:
12162002
NACRES:
NA.23

description

acetylene surface groups

form

solid

mol wt

PEG average Mn 20,000 (n~450; esterified with 8 acetylene groups)
Mn 16,000-21,000 (by NMR)
average Mn 21,000

feature

generation 2

no. Surface Groups

8

transition temp

Tm 56-60 °C

Mw/Mn

≤1.4

functional group

alkyne

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General description

Dendrimers and dendrons are symmetrically branched polymer structures that possess a well-defined spatial distribution of functional groups. Dendrimers are chemically modified by attaching poly ethylene glycol (PEG) molecule to increase its solubility and prolong circulation half-life. “Clickable groups”, such as primary acetylenes, are introduced to the mono dispersed dendritic structures, using “click” chemistry.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Applications of Orthogonal, ?click? Chemistries in the synthesis of functional soft materials
Chemical Reviews, 109 (11), 5620-5686 null
Biocompatible Dendritic Building Blocks for Advanced Biomedical Reasearch
Michael Malkoch and Andreas M Nystrom
Material Matters, 7(3), 47-49 null
Degradable Poly (ethylene glycol) hydrogels for 2 D and 3D cell culture
Andrea M Kasko
Material Matters, 6 (3), 67-75 null
Huiyuan Li et al.
Molecules (Basel, Switzerland), 18(8), 9797-9817 (2013-08-21)
Click chemistry is an efficient and chemoselective synthetic method for coupling molecular fragments under mild reaction conditions. Since the advent in 2001 of methods to improve stereochemical conservation, the click chemistry approach has been broadly used to construct diverse chemotypes

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