Aquazol®

Poly(2-ethyl-2-oxazoline)

A High Performance Water-Soluble Polymer

Aquazol, poly(2-ethyl-2-oxazoline) – also known as PEOX or PEtOx, is a unique and innovative water-soluble polymer which is non-toxic, non-hazardous, and biocompatible. Among other novel characteristics, this polymer is temperature responsive and inversely soluble above its LCST, ~66°C.

Aquazol’s numerous advantages come from its unique design, featuring a stable amide group (found in natural proteins), with the amide nitrogen in the backbone of the polymer and the amide carbonyl group in the dangling side chain. The doubly bonded, electronegative oxygen in the carbonyl is structurally positioned to readily hydrogen-bond. This novel and innovative design of the polymer backbone presents many advantages over other in-class polymers (PVA, PEG, PVP), including:

Increased Stability under Temperature, Shear, Oxidation, and UV
Unparalleled “Actives” Loading Capability
Incredibly Broad Solubility
Precise Control of Viscosity
Excellent Film Forming

No “Unzipping Mechanism” and No Rapid Off-Gassing
Strong Adhesion
Impressive Compatibility
Especially Broad Dispersity
Ease of Processing

Product Specifications

Aquazol is supplied as 100% active off-white amorphous granules in four different grades, all having a poly-dispersity range of 3 – 4. Aquazol grades are based on kinematic viscosity, as detailed in the table below:

Product Grade	Kinematic Viscosity Range (10% Aqueous Solution)
Aquazol 5	2 – 3 cSt
Aquazol 50	5 – 7 cSt
Aquazol 200	18 – 24 cSt
Aquazol 500	60 – 80 cSt

For Aquazol polymer with a narrow pdi (<1.9) and targeted molecular weight, please inquire about HP Aquazol.

Chemical Specifications



Chemical Name

Poly(2-ethyl-2-oxazoline)



Formula

-(C₅H₉NO)_n–



CAS Registry Number

25805-17-8

Physical Properties

Property	Result
Appearance	Off-white solid
Refractive Index	1.52
Glass Temperature	69°C
Degradation Onset	380°C in air
Vicat Softening Temperature	70°C
Cloud Point (5% w/w)	68°C
Specific Gravity	1.14
Dielectric Constant	3.68
Solubility Parameter	25.73
Solubility in Water	Freely Soluble
pH in Aqueous Solution	Neutral

Industrial Application

Aquazol is available in four different grades, each specifically targeted to provide customers with a different set of attributes for their products. Among other differences, the viscosity varies greatly at the different grades, providing specialized performance in a wide range of industries.

Adhesives

Films and Coatings

Paint

Water Technology

See All Industries

Regulatory Information

Listed on US TSCA Inventory
Approved by FDA for use as an indirect food additive (adhesive) under 21 CFR 175.105
Not found to be in any hazard category defined by SARA Title III, Sections 311 and 312
EPA approved for use as an inert ingredient when used in non-food use applications
RoHS (2011/65/EU) Compliant

Technical Information

To find the information necessary for your specific application in printable format, please visit our substantial library of technical data sheets or view our FAQ. Otherwise, please do not hesitate to contact us via our online form. We enjoy answering questions!