Abstract: Telechelic polyolefin of formula(I) and its derivatives: CH2?CH—(CH2)p-A-Z ??(I) wherein: A represents a (co)polymer comprising at least 95 mol % of (CH2—CH2) units; Z is selected from the group comprising halogens, thiols and their derivatives, azides, amines, alcohols, the carboxylic acid function, isocyanates, silanes, phosphorous derivatives, dithioesters, dithiocarbamates, dithiocarbonates, trithiocarbonates, alkoxyamines, the vinyl function, dienes, and the group —A—(CH2)p-CH?CH2; p is a whole number between 1 and 20, most advantageously between 6 and 9.

Abstract: Process for the preparation of a vinylidene chloride polymer comprising polymerizing vinylidene chloride and optionally at least one ethylenically unsaturated monomer copolymerizable therewith under the control of a RAFT agent of formula (II).

Abstract: The invention concerns a biocompatible polymer having a mole weight more than 50000 g/mole, preferably 90000 g/mole for fixing biological ligands comprising at least a first linear segment consisting of a hydrophobic homopolymer derived from polymerisation of a hydrophobic monomer A; a second linear segment consisting of a hydrophilic polymer derived from copolymerisation of a monomer B bearing a reactive function X and a hydrophilic monomer C not bearing any reactive function, said second segment being covalently bound to one end of the first segment. The invention also concerns a biological polymer-ligand-conjugate, a device for capturing a target molecule comprising a solid support whereon is immobilised a biological polymer-ligand conjugate and methods for preparing said polymer. The invention is mainly applicable in the field of diagnosis.