901422
Poly(N-isopropylacrylamide)
average Mn 85,000
Synonym(s):
NIPAM polymer, PNIPAM, PolyNIPAM, Polyacrylamide, polyNIPAM
Sign Into View Organizational & Contract Pricing
All Photos(1)
About This Item
Linear Formula:
CH3(C6H11NO)nCH3
CAS Number:
MDL number:
UNSPSC Code:
12162002
NACRES:
NA.23
Recommended Products
form
crystals
mol wt
Mn 60,000-110,000 Da by MALLS (GPC)
average Mn 85,000
color
white to off-white
mp
96 °C
storage temp.
2-8°C
SMILES string
CC(C)NC(=O)C=C
InChI
1S/C6H11NO/c1-3-5-7-6(8)4-2/h4H,2-3,5H2,1H3,(H,7,8)
InChI key
WDFKEEALECCKTJ-UHFFFAOYSA-N
Looking for similar products? Visit Product Comparison Guide
General description
Poly(N-isopropylacrylamide) (PNIPAM) is a temperature-responsive polymer used in biomedical research applications. PNIPAM undergoes a reversible, lower critical solution temperature (LCST) phase transition when heated above 32 °C, transitioning from a soluble to an insoluble material. PNIPAM is also frequently crosslinked to yield hydrogels with reversible, thermal shrinking and swelling. Poly(N-isopropylacrylamide) is also readily functionalized and has been used as the hydrophilic block in the synthesis of thermoresponsive, amphiphilic block copolymers. Due to the similarity in temperature between the LCST of PNIPAM and the temperature of the human body, PNIPAM materials have been frequently utilized in tissue engineering and controlled drug delivery research applications.
Poly(N-isopropylacrylamide) (PNIPAM) is a thermo-sensitive polymer with a low critical solution temperature (LCST). It exhibits both hydrophobic and hydrophilic characteristics below and above the LCST. It forms microgels, typically by free-radical precipitation polymerization.
Application
PNIPAM can be used in the formation of a smart hydrogel, which finds potential usage in sensors, fuel cells, supercapacitors, and lithium-ion batteries. It can also be used in the fabrication of molecular nanothermometer. PNIPAM is coated with gold nanoparticles (AuNPs) to form microgels that facilitate highly reproducible signals for surface-enhanced Raman scattering (SERS).
Thermosensitive polymer, can be used to form a hydrogel. Aqueous polymer solution undergoes a phase transition from a soluble to an insoluble state when the temperature is raised to ca. 32 °C.
Storage Class Code
11 - Combustible Solids
WGK
WGK 1
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’.
Already Own This Product?
Find documentation for the products that you have recently purchased in the Document Library.
Customers Also Viewed
Au@ pNIPAM colloids as molecular traps for surface-enhanced, spectroscopic, ultra-sensitive analysis
Alvarez-Puebla RA, et al.
Angewandte Chemie (International ed. in English), 48(1), 138-143 (2009)
S Panja et al.
ACS applied materials & interfaces, 8(19), 12063-12074 (2016-04-30)
The design of nanomedicines from the tuned architecture polymer is a leading object of immense research in recent years. Here, smart thermoresponsive micelles were prepared from novel architecture four-arm star block copolymers, namely, pentaerythritol polycaprolactone-b-poly(N-isopropylacrylamide) and pentaerythritol polycaprolactone-b-poly(N-vinylcaprolactam). The polymers
Synthesis of hyperbranched polyglycidol-b-poly(N-isopropylacrylamide) using nitroxide-mediated polymerization for thermo-sensitive drug delivery system.
Min Seon Heo et al.
Journal of controlled release : official journal of the Controlled Release Society, 213, e80-e80 (2016-03-24)
Muhammad Abdul Haq et al.
Materials science & engineering. C, Materials for biological applications, 70(Pt 1), 842-855 (2016-10-25)
Materials which adjust their properties in response to environmental factors such as temperature, pH and ionic strength are rapidly evolving and known as smart materials. Hydrogels formed by smart polymers have various applications. Among the smart polymers, thermoresponsive polymer poly(N-isopropylacrylamide)(PNIPAM)
Nanorod-coated PNIPAM microgels: thermoresponsive optical properties
Karg M, et al.
Small, 3(7), 1222-1229 (2007)
Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.
Contact Technical Service