Structure and properties of polynorbornene derivatives: Poly(norbornene dicarboxylic acid dialkyl ester)s and poly(norbornene dimethyl dicarboxylate)s
نویسندگان
چکیده
منابع مشابه
Tuning the hemolytic and antibacterial activities of amphiphilic polynorbornene derivatives.
Amphiphilic cationic polynorbornene derivatives, soluble in water, were prepared from modular norbornene monomers, with a wide range of molecular weights (M(n) = 1600-137 500 g/mol) and narrow polydispersities (PDI = 1.1-1.3). The antibacterial activity determined by growth inhibition assays and the hemolytic activity against human red blood cells were measured and compared to determine the sel...
متن کاملSulfonation of Surface-Initiated Polynorbornene Films
We report the sulfonation of surface-initiated polynorbornene with acetyl sulfate to produce ultrathin ionomer films. The complete process consists of exposure of a hydroxyl-terminated self-assembled monolayer (SAM) on gold to a norbornenyl diacid chloride, attachment of Grubbs first generation catalyst, ring-opening metathesis polymerization (ROMP), and sulfonation. Structural and chemical cha...
متن کاملCross-metathesis of polynorbornene with polyoctenamer: a kinetic study
The cross-metathesis of polynorbornene and polyoctenamer in d-chloroform mediated by the 1(st) generation Grubbs' catalyst Cl2(PCy3)2Ru=CHPh is studied by monitoring the kinetics of carbene transformation and evolution of the dyad composition of polymer chains with in situ (1)H and ex situ (13)C NMR spectroscopy. The results are interpreted in terms of a simple kinetic two-stage model. At the f...
متن کاملDevelopment of a New Force Field for Polynorbornene
A new force field has been customized for the variation of polynorbornene that contains a bicycloheptane group in the backbone structure. The force field was developed from ab initio density functional theory (DFT), and semiempirical electronic structure calculations for both stereochemical dimers of the 2,3 exoexo isomer of polynorbornene. The bond length and bond angle parameters were determi...
متن کاملConductive Block Copolymers Integrated into Polynorbornene-Derived Scaffolds
The synthesis and electrochemical properties of novel block copolymers are reported. Three different norbornene derivatives having phenylene-thiophene, phenylene-bithiophene, and phenylene-furan structures were copolymerized with either norbornene or 7-oxanorbornene derivatives via ring-opening metathesis polymerization (ROMP). Block copolymers’ stabilities and solubilities could be improved by...
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ژورنال
عنوان ژورنال: Macromolecular Research
سال: 2007
ISSN: 1598-5032,2092-7673
DOI: 10.1007/bf03218772