Investigations of the Kinetics of Hydrogel Nanoparticle Volume Phase Transitions (CAT#: STEM-AC-0068-WXH)

Introduction

Hydrogel nanoparticles are made either from natural or synthetic polymers. The former possess a high variety of functional groups, which allow chemical and biochemical modification resulting in many kinds of biopolymer-based materials.
The volume phase transition (VPT) in gels is characterized by an “abrupt” (discontinuous) change in the degree of swelling and by the possibility of coexistence of two gel phases differing in the degree of swelling.

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Principle Applications Procedure Materials Notes Related Products

Principle

The temperature jump method is a technique used in chemical kinetics for the measurement of very rapid reaction rates.
The T-Jump technique provides a means to follow fast reactions with half-lives of just a few microseconds. The reaction volume is prepared so that it is in equilibrium and then rapidly perturbed by a rapid change in temperature. There is a new equilibrium constant at the higher temperature, but the initial concentrations are balanced for the lower temperature. The system therefore relaxes and the reaction proceeds until the concentrations have reached their new equilibrium values.

Applications

Used in chemical kinetics for the measurement of very rapid reaction rates

Materials

Temperature Jump System

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