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724467

Sigma-Aldrich

Poly(N-isopropylacrylamide-co-methacrylic acid)

methacrylic acid 5 mol %, average Mn 50,000

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Synonym(s):
Poly(NIPAM-co-MAA), Polyacrylamide, functionalized polyNIPAM, functionalized polyacrylamide, polyNIPAM
Linear Formula:
(C6H11NO)m (C4H6O2)n
CAS Number:
UNSPSC Code:
12162002
NACRES:
NA.23

form

powder

mol wt

average Mn 50,000

composition

methacrylic acid, 5 mol %

mp

>300 °C

InChI

1S/C6H11NO.C4H6O2/c1-4-6(8)7-5(2)3;1-3(2)4(5)6/h4-5H,1H2,2-3H3,(H,7,8);1H2,2H3,(H,5,6)

InChI key

BGJOTKHBFYMJST-UHFFFAOYSA-N

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Application

Intelligent Swelling/Collapsing copolymer that can be used as a temperature- and pH-sensitive materials.

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

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Samer R Abulateefeh et al.
Macromolecular bioscience, 11(12), 1722-1734 (2011-10-21)
Many difficulties in treating cancer arise from the problems in directing highly cytotoxic agents to the deseased tissues, cells and intracellular compartments. Many drug delivery systems have been devised to address this problem, including those that show a change in
Pierre Simard et al.
International journal of pharmaceutics, 381(2), 86-96 (2009-05-19)
A promising avenue in cancer therapy using liposomal formulations is the combination of site-specific delivery with triggered drug release. The use of trigger mechanisms in liposomes could be relevant for drugs susceptible to lysosomal hydrolytic/enzymatic degradation. Here, we propose a
J Moselhy et al.
Journal of biomaterials science. Polymer edition, 11(2), 123-147 (2000-03-16)
The pH- and temperature-responsive poly(N-isopropylacrylamide-co-methacrylic acid) (PNIPAm/MAA) nanoparticles are of potential application in targeted drug delivery. Their responsive properties in the presence of human serum albumin were investigated using dynamic light scattering (DLS), protein assay, and electron spin resonance (ESR)
Eunice Costa et al.
Langmuir : the ACS journal of surfaces and colloids, 28(26), 10082-10090 (2012-06-09)
The layer-by-layer (LbL) assembly of polyelectrolyte pairs on temperature and pH-sensitive cross-linked poly(N-isopropylacrylamide)-co-(methacrylic acid), poly(NIPAAm-co-MAA), microgels enabled a fine-tuning of the gel swelling and responsive behavior according to the mobility of the assembled polyelectrolyte (PE) pair and the composition of
Sabrina Schmidt et al.
Langmuir : the ACS journal of surfaces and colloids, 27(16), 9801-9806 (2011-07-09)
Charged poly(N-isopropylacrylamide-co-methacrylic acid) [P(NiPAM-co-MAA)] microgels can stabilize thermo- and pH-sensitive emulsions. By placing charged units at different locations in the microgels and comparing the emulsion properties, we demonstrate that their behaviors as emulsion stabilizers are very different from molecular surfactants

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