Self-association of novel mixed 3-mono-O-alkyl cellulose: Effect of the hydrophobic moieties ratio

► Cellulose was regioselectively substituted at position 3 of the repeating unit. ► The substituents are ethyl and propyl in different ratios. ► Gelation (aggregation) occurs on heating above a critical temperature (Tm). ► Transition temperature and gel strength both depend on the ethyl/propyl ratio. ► The higher the propyl the lower Tm and the stronger the gel.