Abstract
The preparation of ωω′ bisfunctional oligoesters (unsaturated or not) is described. The oligoesters are characterised by NMR, end-group titration and tonometry. Their modification by transformation of acid to acid chloride end-group is reported. Their solution polycondensation with ωω′ dihydroxy polyethers is described. A statistical method has been used to optimize the reaction conditions. The properties of the poly (unsaturated esters-b-ethers) are studied. Examination by thermal differential analysis shows that the two blocks are compatible.
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