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192066

Sigma-Aldrich

Poli(2-hidroxietil metacrilato)

average Mv 300,000, crystalline

Sinónimos:

Poli (2-HEMA), Poli-HEMA

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About This Item

Fórmula lineal:
(C6H10O3)n
Número de CAS:
25249-16-5
MDL number:
MFCD00084374
UNSPSC Code:
12162002
PubChem Substance ID:
24851526
NACRES:
NA.23

form

crystalline

mol wt

average Mv 300,000

density

1.15 g/mL at 25 °C (lit.)

SMILES string

CC(=C)C(=O)OCCO

InChI

1S/C6H10O3/c1-5(2)6(8)9-4-3-7/h7H,1,3-4H2,2H3

InChI key

WOBHKFSMXKNTIM-UHFFFAOYSA-N

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General description

Solid Poly(2-hydroxyethyl methacrylate) (pHEMA) is brittle, while pHEMA hydrogel is a soft material. Glass transition temperature for pHEMA hydrogels is reduced by increasing a content of water in the matrix. Macromolecular properties in pHEMA are characterized by non-covalent interactions of hydrogen-bonds among the polymer chains as well as the hydrated water molecules. The presence of polar groups of hydroxyl and carboxyl on each repeat unit makes this polymer compatible with water. The hydrophobic a-methyl groups of the backbone convey hydrolytic stability to the polymer and enhance mechanical strength of the polymer matrix.

Application

pHEMA scaffolds are used in tissue engineering. It can be used in hydrogels for biomedical applications, as sorbents for metal ions.pHEMA has been used in applications such as soft contact lenses, in drug delivery systems, and in kidney dialysis membranes.Nanoparticles of pHEMA may be employed as a carrier for controlled delivery of anticancer and antitumor drugs.

Physical form

Polímero hinchable en agua. Hidrogel.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Fiber templating of poly (2-hydroxyethyl methacrylate) for neural tissue engineering
Flynn L,et al
Biomaterials, 24(23), 4265-4272 null
W E Roorda et al.
Pharmaceutical research, 5(11), 722-725 (1988-11-01)
The freezing and melting behavior of water in poly hydroxy ethyl methacrylate (pHEMA) hydrogels of different cross-linker and water contents was investigated in relation to the glass transition temperature (Tg) of the gels. After prolonged cooling at -15 degrees C
N Nogueira et al.
Journal of colloid and interface science, 385(1), 202-210 (2012-07-31)
The behavior of poly(2-hydroxyethyl methacrylate) (PHEMA) polymer monolayer spread on water was studied under various experimental conditions. The influence of subphase pH and temperature, compression speed, elapsed time from the deposit of the monolayer and the recording of the surface
Yunfeng Li et al.
ACS applied materials & interfaces, 5(6), 2126-2132 (2013-02-23)
This paper presents a versatile way to prepare multiscale and gradient patterns of proteins. The protein patterns are fabricated by conjugating proteins covalently on patterns of polymer brush that are prepared by techniques combining colloidal lithography with photolithography, and two-step
Amit D Bhrany et al.
JAMA facial plastic surgery, 15(1), 29-33 (2013-01-19)
To evaluate the performance of a sphere-templated poly(2-hydroxyethyl methacrylate) (poly[HEMA]) tissue scaffold as a subcutaneous implant by comparing it with widely used high-density porous polyethylene (HDPPE) implant material. We implanted sphere-templated porous poly-(HEMA) and HDPPE disks into the dorsal subcutis
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