PEHMA

Poly(2-ethylhexyl methacrylate)

Robust Hydrophobic Polymer

PEHMA is an organic, hydrophobic and non-fouling polymer. It’s synonyms are 2-propionic acid, 2-methyl, 2-ethylhexyl ester, homopolymer; poly(hexyl ethylmethacrylate); polyhexyl ethyl methacrylate. PEHMA is part of the poly(alkyl methacrylate) family and known for:

Adhesion
Chemical resistance
Flexibility
Hydrophobicity
Weatherability

PEHMA is incredibly robust while remaining flexible, and when pressed into a film at 1.5 micron thickness it allows for >92% visible light transmittance with <1% haze in the visible spectrum.

Product Specifications

PEHMA is offered as a granular solid with <2000 ppm of solvent and <1000 ppm of monomer for research and medical grade applications and can also be supplied as 50% wt solids in cyclohexane for commercial applications.

PEHMA is analyzed through inherent viscosity to meet the following specification range:

Inherent Viscosity (@ 25°C in Toluene)

0.7 – 1.3 dL/g

Should your application require a specific IV range, Polymer Chemistry Innovations can tailor manufacturing to precisely meet your needs.

Chemical Specifications

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Chemical Name

Poly(2-ethylhexyl methacrylate)

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Formula

-(C₁₂H₂₂O₂)_n–

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CAS Registry Number

25719-51-1

Physical Properties

Property	Result
Physical State	Solid
Appearance	White Granules
Temperature Gradient	-6°C, -10°C
Inherent Viscosity	0.7 – 1.3 dL/g at 25°C in Toluene
Refractive Index	1.4390
Density	0.8847
Decomposition Temperature	255°C
Residual Solvent	< 2000 ppm
Residual Monomer	< 1000 ppm
Visible light transmittance	92.7% (400-700nm) at 1.5 micron thickness
Average Haze	0.82% in the visible spectrum (400-700 nm)

Industrial Application

PEHMA is an organic, hydrophobic and non-fouling polymer that is robust while remaining flexible. This unique polymer creates an incredibly clear film with minimal haze and is well suited for a range of applications.

Adhesives

Films and Coatings

Printing

Medical

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Regulatory Information

Listed on TSCA Inventory
Exempt from chemical reporting under TSCA
FDA CRF 177.1010 B(3ii)

Technical Information

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