摘要:
A compound includes at least one group Q and at least one group A linked together by at least one “spacer” group Sp, in which: group Q includes a dipole containing at least one nitrogen atom, preferably a nitrile oxide, nitrone, or nitrile imine function; group A contains at least one nitrogen atom, and is preferably an imidazolidinyl, ureyl, bis-ureyl, ureido-pyrimidyl, and triazolyl group; and Sp is an atom or a group of atoms forming a link between Q and A, preferably, a linear, branched or cyclic hydrocarbon-based optionally substituted chain, and may contain one or more aromatic radicals and/or heteroatoms. The compound may react with an unsaturated polymer forming a covalent bond with the polymer. The compound is useful for providing good interaction between fillers and polymers by establishing labile, non-covalent bonds between the polymer chains and the filler, thereby limiting processing problems.
摘要:
The present invention relates to nitrogenous associative molecules comprising at least one unit rendering them capable of associating with one another or with a filler by noncovalent bonds, and comprising a function capable of reacting with a polymer containing unsaturations so as to form a covalent bond with said polymer.
摘要:
The present invention relates to nitrogenous associative molecules comprising at least one unit rendering them capable of associating with one another or with a filler by noncovalent bonds, and comprising a function capable of reacting with a polymer containing unsaturations so as to form a covalent bond with said polymer.
摘要:
The present invention relates to the use, as a shock absorber, of a material formed from branched molecules comprising associative groups. Said branched molecules are each constituted of fragments that are at least bifunctional and of fragments that are at least trifunctional joined together by ester or thioester bridges, alone or in combination with amide or urea bridges.
摘要:
The invention relates to a composition comprising a latex and at least one copolymer that may be obtained via a monomer polymerization process, comprising a step of placing in contact, in a medium comprising water, the said monomer(s) with at least one initiator corresponding, for example, to the formula:
摘要:
The invention relates to the field of plasticizers, compounds used as additives in polymers for facilitating the transformation thereof or modifying the mechanical properties thereof especially rigidity.
摘要:
A subject matter of the present invention is a composition comprising: (i) from 0.1 to 49 parts by weight of at least one thermoplastic condensation polymer; and (ii) from 51 to 99.9 parts by weight of at least one supramolecular polymer capable of being obtained by the reaction of at least one at least trifunctional compound (A) carrying first and second functional groups with: at least one compound (B) carrying, on the one hand, at least one reactive group capable of reacting with the first functional groups of (A) and, on the other hand, at least one associative group; and at least one at least bifunctional compound (C), the functional groups of which are capable of reacting with the second functional groups of the compound (A) in order to form ester, thioester or amide bridges.
摘要:
The invention relates to the field of plasticisers, compounds used as additives in polymers for facilitating the transformation thereof or modifying the mechanical properties thereof especially rigidity.
摘要:
The invention relates to the field of plasticizers, compounds used as additives in polymers for facilitating the transformation thereof or modifying the mechanical properties thereof, especially rigidity.
摘要:
The invention relates to an alkoxyamine of formula (I) below: in which R1 may be a hydrogen atom, R2 and R3 alkyl groups, such as a methyl group, R4 a phenylene group bearing an —SO3Na group, R5 a hydrogen atom, and R6 and R7 alkyl groups, such as an ethyl group.Use of these alkoxyamines as a radical polymerization initiator.