Related Experiment Video
Updated: Jan 30, 2026

Using the GELFREE 8100 Fractionation System for Molecular Weight-Based Fractionation with Liquid Phase Recovery
Published on: December 3, 2009
Carbamate-Based Bolaamphiphile as Low-Molecular-Weight Hydrogelators
Laurent Latxague1, Alexandra Gaubert2, David Maleville3
1ARNA laboratory, Univ. Bordeaux, ChemBioPharm, INSERM, U1212, CNRS UMR 5320, F-33000 Bordeaux, France. laurent.latxague@u-bordeaux.fr.
Abstract:
A new bolaamphiphile analog featuring carbamate moieties was synthesized in six steps starting from thymidine. The amphiphile structure exhibits nucleoside-sugar polar heads attached to a hydrophobic spacer via carbamate (urethane) functions. This molecular structure, which possesses additional H-bonding capabilities, induces the stabilization of low-molecular-weight gels (LMWGs) in water. The rheological studies revealed that the new bolaamphiphile 7 stabilizes thixotropic hydrogels with a high elastic modulus (G' > 50 kPa).
Related Concept Videos
Polymers: Defining Molecular Weight
The number average molecular weight (Mn) is the summation of the number...
Polymers: Molecular Weight Distribution
Molecular Weight of Step-Growth Polymers
As the step-growth polymerization involves step-wise condensation of monomers, the molecular weight also builds up eventually. Consequently, high molecular weight polymers are obtained at the late stages of the polymerization, where 99% of monomers have been consumed.
The extent of the...
Anticoagulant Drugs: Low-Molecular-Weight Heparins
Weighted Mean
For example, consider the number of goals scored in the matches of a tournament. While computing the average number of goals scored in the tournament, it may be more important to...
Atomic Weight

