Modification of the Surface Chemistry of Macromolecular Species in the Presence of a Conjugated Guanidine
The present invention relates to a method for preparing macromolecular species with a modified surface, comprising a step (e) in which macromolecular species (M), initially carrying -OH and/or -SH functions, are brought into contact with: a catalyst (C) carrying at least one conjugated guanidine fun...
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Main Authors | , |
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Format | Patent |
Language | English |
Published |
20.01.2011
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Subjects | |
Online Access | Get full text |
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Summary: | The present invention relates to a method for preparing macromolecular species with a modified surface, comprising a step (e) in which macromolecular species (M), initially carrying -OH and/or -SH functions, are brought into contact with: a catalyst (C) carrying at least one conjugated guanidine function; and reactive species (E), comprising reactive groups including: (i) at least one group including an a,b-unsaturated carbonyl group C C-C O and/or an a,b-unsaturated thiocarbonyl group C C-C S; and/or (ii) at least one heterocyclic group comprising from 3 to 5 ring members, said group being selected from cyclic ethers, cyclic thioethers and aziridine rings; and/or (iii) at least one group selected from isocyanate -N C O or thioisocyanate -N C S groups, and trivalent groups of formula >C CZ-, where Z is an electron-withdrawing group. The invention also relates to the macromolecular species with a modified surface that are obtained in this context. |
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Bibliography: | Application Number: US20090736293 |