181285
Poly(acrylic acid)
average Mv ~450,000
Synonym(s):
PAA
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All Photos(3)
About This Item
Linear Formula:
(C3H4O2)n
CAS Number:
MDL number:
UNSPSC Code:
12162002
PubChem Substance ID:
NACRES:
NA.23
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crosslinking
~0.1 % cross-linked
mol wt
average Mv ~450,000
viscosity
350-2500 cP
transition temp
Tg 106 °C
InChI
1S/C3H4O2.Na/c1-2-3(4)5;/h2H,1H2,(H,4,5);/q;+1/p-1
InChI key
NNMHYFLPFNGQFZ-UHFFFAOYSA-M
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General description
Poly (acrylic acid) (PAA) is hygroscopic, brittle and colorless in nature with Tg at nearly 106oC. At temperatures above 200 to 250oC, it loses water and becomes an insoluble crosslinked polymer anhydride. Solubility of dried PAA in water increases with rise in temperatures. Concentrated solutions of PAA in water is thixotropic in nature.
Application
Poly (acrylic acid) (PAA)/Poly methyl methacrylate copolymers are used for drug delivery.
Other applications may include:
Other applications may include:
- to study solute diffusion in Polyvinyl alcohol/PAA copolymer hydrogel
- synthesizing poly(N-isopropylacrylamide)-block-PAA copolymer which responds to both temperature and pH stimuli
- in preparing block copolymer of oligo (methyl methacrylate)/PAA for micellar delivery of hydrophobic drugs
- as thickening agent for adhesives.
Storage Class Code
11 - Combustible Solids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
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