Functional Poloxamer

Functional Poloxamer


Poloxamers are triblock copolymers of PEO)and PPO available in different molecular weights and PPO/PEO ratios. The presence of PEO and PPO blocks in a single polymer chain gives rise to essentially amphiphilic molecules. This ability to form micelles and liquid-crystalline phases is strongly temperature dependent since increasing the temperature allows self-association which decreases the critical micelle concentration (CMC).

Another important property of Poloxamers is their thermogelling behavior: water dispersions of some of these polymers are generally in the liquid phase at low temperatures but become a strong gel at increased temperatures.

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