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Merck
CN

764825

Poly(ethylene glycol) methyl ether-block-poly(lactide-co-glycolide)

PEG Mn 2,000, PLGA Mn 4,500

Synonym(s):

PEG-PLGA, Polyethylene glycol, mPEG-b-PLGA

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About This Item

Linear Formula:
H[(C3H4O2)x(C2H2O2)y]mO[C2H4O]nCH3
NACRES:
NA.23
UNSPSC Code:
12162002
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form

pellets

Quality Segment

feed ratio

lactide:glycolide 65:35

mol wt

PEG Mn 2,000, PLGA Mn 4,500, average Mn 6,500 (total)

degradation timeframe

1-4 weeks

transition temp

Tm 241-246 °C

PDI

≤2.0

storage temp.

2-8°C

General description

Amphiphilic block copolymers (AmBC) are made up of two chemically different homopolymer blocks. One of the block is hydrophilic and the other one is hydrophobic. These macromolecules have the properties to self-assemble when dissolved in an aqueous media. PEG-PLGA is one the most commonly used biodegradable amphiphilic block copolymers for drug delivery applications. PEG is the hydrophilic part and PLGA is the hydrophobic part.

Application

Used in the synthesis of targeted nanoparticles which are used for differential delivery and controlled release of drugs.
forming "stealth" pegylated microparticles

Features and Benefits

  • Good biocompatibility, low immunogenicity and good degradability.
  • Properties can be easily modulated by changing the block copolymer segment sizes to suit a particular application.


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Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable



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