HEMA-5 & HEMA-10 Polyethoxy (5) methacrylate Polyethoxy (10) methacrylate

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HEMA-5 Polyethoxy (5) methacrylate and HEMA-10 Polyethoxy (10) methacrylate

CAS No. 25736-86-1

HEMA-5 and HEMA-10 allow the preparation of polymers with varying surface activity and solubility by providing strongly hydrophilic groups pendant to the polymer backbone.

Solution polymerisation in water with acrylic or methacrylic acid results in water soluble polymers useful as dispersants or anti-scalants.

In emulsion polymerisation, incorporation of HEMA-5 or HEMA-10 through the methacrylate functionality modifies the particle surface providing a water soluble pendant nonionic chain able to enhance latex stability, particularly when used in conjunction with other nonionic surfactants.

Structure

hema-5.gif (1658 bytes)

Molecular weight: 306 (n=5) and 526 (n=10).

Typical Properties

	HEMA-5	HEMA-10
Ethylene oxide, moles:	5	10
Active content, %:	95	90
Moisture, %:	0.5	0.5
Hydroxyl number, mg KOH/g:	190	98
Inhibitor (para-Benzophenone), ppm:	800	800
Appearance:	Slightly viscous liquid	Viscous liquid

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