Polycondensation of Polymer Brushes via DNA Hybridization
摘要:
Triblock copolymer brushes were functionalized with nucleic acid sequences, which allowed the polymers to connect head-to-tail and form supramolecular nanostructures. Two approaches were designed and implemented, using either a palindromic DNA attached to both ends of the polymer or two different DNA sequences attached regiospecifically. Given appropriate conditions, the DNA-brush conjugates self-assembled to form either nanoworms with length up to several microns or cross-linked networks. This process is analogous to the step-growth polymerization of small molecule monomers.
We demonstrate that polynorbornene containing dibromomaleimide sidegroup is a novel polymer platform for post-polymerization modification. Polymer P0 was obtained through ring-openingmetathesispolymerization of monomer 2 by using Grubbs third generation catalyst. Subsequently, P0 was chemically modified with 1-butanethiol and benzyl mercaptan to generate P1 and P2, respectively. In this way, the
Process for forming perfluorinated-alkyl sulfonamide substituted norbornene-type monomers
申请人:Bell Andrew
公开号:US20080027246A1
公开(公告)日:2008-01-31
Embodiments in accordance with the present invention are directed to providing processes for forming fluorinated-alkyl and particularly perfluorinated-alkyl sulfonamide substituted norbornene-type monomers.
本发明实施例涉及提供用于形成氟化烷基和特别是全氟烷基磺酰胺取代的诺博烯型单体的过程。
Synthesis of Poly(norbornene-methylamine), a Biomimetic of Chitosan, by Ring-Opening Metathesis Polymerization (ROMP)
作者:Na Li、Huanhuan Wang、Xiaosai Qu、Yu Chen
DOI:10.3390/md15070223
日期:——
weight distribution of the produced polymer products were determined by gel permeation chromatography (GPC). It was found that the M n ¯ of poly(norbornene-(N-methyl)-phthalimide) was controllable and exhibited a narrow polydispersity index (PDI) (~1.10). The synthesis condition of 5-norbornene-2-(N-methyl)-phthalimide was optimized by determining the yields at different reaction temperatures and reaction
作者:Sian-Yang Ow、Innocent Bekard、Anton Blencowe、Greg G. Qiao、Dave E. Dunstan
DOI:10.1039/c4tb01762e
日期:——
including Alzheimer's disease, Parkinson's disease and type II diabetes. One therapeutic strategy for treating amyloid related diseases involves inhibiting fibril formation. Amyloid fibrils are β-sheet rich fibrillar aggregates that associate through hydrophobic interactions between precursor units. In this study, these generic physicalproperties of amyloid fibrils have been exploited to design a universal