نتایج جستجو برای: hyperbranched polymer

تعداد نتایج: 93884  

1999
Atsushi Aoki Pradyut Ghosh Richard M. Crooks

Micrometer-scale patterns of eosin and dansyl dyes on hyperbranched poly(acrylic acid) (PAA) organic thin films have been prepared using a combination of photoacid-based lithography and covalent grafting of dye molecules. Reflection infrared spectroscopy, optical microscopy, and fluorescence microscopy indicate that the dyes were attached within the intended regions. Patterned dye features havi...

Journal: :Macromolecular bioscience 2007
Shangjie Xu Ying Luo Rainer Haag

A simple general synthetic concept to build dendritic core-shell architectures with pH-labile linkers based on hyperbranched PEI cores and biocompatible PEG shells is presented. Using these dendritic core-shell architectures as nanocarriers, the encapsulation and transport of polar dyes of different sizes is studied. The results show that the acid-labile nanocarriers exhibit much higher transpo...

2012
Mariusz Ł. Mamiński Rafał Szymański Paweł Parzuchowski Andrzej Antczak Karolina Szymona

Two hyperbranched polyglycerols (HBPGs) and one oligoglycerol containing bisphenol A in the core of the molecule were synthesized from glycerol carbonate and applied as polyols in 2-component polyurethane adhesive systems. It was shown that mechanical performance of the joints made in solid wood depended on the hydroxyl functionality of the polyglycerol as well as on the type of the isocyanate ...

Journal: :Macromolecular rapid communications 2011
Zhishen Ge Hao Liu Yanfeng Zhang Shiyong Liu

Poly(N-isopropylacrylamide) (PNIPAM) oligomer containing one adamantyl (AD) and two β-cyclodextrin (β-CD) moieties at the chain terminals, AD-PNIPAM-(β-CD)(2), was synthesized by atom transfer radical polymerization (ATRP) and successive click reactions. In aqueous solution, AD-PNIPAM-(β-CD)(2) spontaneously forms supramolecular thermoresponsive hyperbranched polymers via molecular recognition ...

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