C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 81/00 (2006.01) B01D 67/00 (2006.01) B01D 69/02 (2006.01) B01D 69/14 (2006.01) B01D 71/06 (2006.01) B01D 71/34 (2006.01) B01D 71/78 (2006.01) C08J 5/22 (2006.01)
Patent
CA 2422090
The present invention relates to synthetic methods for grafting hydrophilic chains onto polymers, particularly hydrophobic polymers such as poly(vinyl chloride) (PVC), poly(vinylidene fluoride) (PVDF), and chlorinated polypropylene (cPP). Resulting polymers include comb polymers which can have a microphase-separated structure of hydrophilic domains provided by the hydrophilic chains. Articles prepared from these comb polymers, particularly derived form PVDF, include membranes for water filtration in which the hydrophilic domains provide a pathway for water transport. PVC can be platicized by grafting the PVC with hydrophilic chains. In addition, such articles, particularly articles having biomedical applications, can display anti-thrombogenic properties.
L'invention concerne des procédés de synthèse servant à greffer des chaînes hydrophiles sur des polymères, en particulier, des polymères hydrophobes, tels que chlorure de polyvinyle (PVC), fluorure de polyvinylidène (PVDF) et polypropylène chloré (cPP). Les polymères obtenus consistent en des polymères en peigne pouvant présenter une structure séparée en microphases de zones hydrophiles produites par les chaînes hydrophiles. Des articles préparés à base de ces polymères, en particulier (PVDF), comprennent des membranes de filtration d'eau dans lesquelles les zones hydrophiles constituent un trajet de circulation d'eau. On peut plastifier le PVC, ce qui consiste à le greffer sur des chaînes hydrophiles. De plus, ces articles, en particulier des articles utilisés dans le domaine biomédical, peuvent présenter des caractéristiques anti-thrombogènes.
Akthakul Ariya
Banerjee Pallab
Hester Jonathan F.
Mayes Anne M.
Cassan Maclean
Massachusetts Institute Of Technology
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