Excess molar volumes V-E measured at 288 15 and 308.15 K for (1-hexanol + 1-hexene), (1-hexanol + 1-octene) and (1-hexanol + 1-decene) systems are reported The data and the measurements reported before at 298 15K for this series of mixtures were used to estimate the excess molar isobaric thermal expansion A(p)(E) = (delta V-E / delta T)(p) and the partial molar excess isobaric thermal expansions A(p.1)(E) of the components at 298 15K The A(p)(E), as a function of concentration, changes from positive-negative for the systems formed by short-chain 1-alkenes like 1-hexene to positive for 1-decene (wet the whole concentration range The modified Treszczanowicz and Benson model (TB) is applied to interpret and to predict changes in the size and shape of the A(p)(E) and A(p.1)(E) curves. The model predicts qualitatively well the changes of the A(p)(E) and A(p.1)(E) values in the series of mixtures as a super position of the contributions clue to self-association of alkanol. free volume, OH pi interactions and residual van der Waals interactions These contributions to the properties investigated are estimated and discussed in the series of mixtures The results obtained are compared with those for 1-alkanol + n-alkane systems (C) 2010 Published by Elsevier B V