نتایج جستجو برای: polybutadiene nanoparticles

تعداد نتایج: 107697  

Journal: :journal of oil, gas and petrochemical technology 2014
mahdi abdollahi mohammad reza yousefi parisa alamdar heidar ranjbar fardin seyyed najafi

polybutadiene nanoparticles were synthesized via batch emulsion polymerization of butadiene in the presence of potassium persulfate, disproportionate rosinate potassium cation and t-dodecyl mercaptane as initiator, emulsifier and chain transfer agent, respectively. polymerization reaction was performed at different temperatures (60, 70 and 80 °c). conversion was measured at the various time int...

Fardin Seyyed Najafi Fatemeh Rekabdar Heidar Ranjbar Mahdi Abdollahi, Mohammad Reza Yousefi Parisa Alamdar

Polybutadiene nanoparticles were synthesized via batch emulsion polymerization of butadiene in the presence of potassium persulfate, disproportionate rosinate potassium cation and t-dodecyl mercaptane as initiator, emulsifier and chain transfer agent, respectively. Polymerization reaction was performed at different temperatures (60, 70 and 80 °C). Conversion was measured at the various time int...

2016
Inbal Berkovich Sudheendran Mavila Olga Iliashevsky Sebastian Kozuch N. Gabriel Lemcoff

Single-chain polybutadiene organometallic nanoparticles: An experimental and theoretical study Inbal Berkovich,a Sudheendran Mavila,a Olga Iliashevsky,b Sebastian Kozucha,c and N. G. Lemcoffa* a Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel b Department of Chemical Engineering, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel c Lise Meitner Mi...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2009
Brigitte Korthals Maria Carmen Morant-Miñana Christiane Hohberger Stefan Mecking

The postpolymerization modification by hydroformylation of 1,2-polybutadiene nanoparticles provides access to colloidally stable aqueous dispersions of <20 nm particles. Their polarity can be adjusted via the degree of conversion of double bonds over a broad range. Fluorescence studies illustrate the polarity of the environment experienced by pyrene as a probe molecule.

2001
Tu Lee Nan Yao Hiroaki Imai Ilhan A. Aksay

Cubic BaTiO3 particles of∼10 nm were crystallized predominantly within the hydroxylated polybutadiene matrix of a phase separated triblock copolymeric thin film of polystyrene-polybutadiene-polystyrene (Kraton D1102). The barium titanated Kraton thin film had remnants of the cylindrical morphology of a plain Kraton thin film with an interdomain spacing of ∼23 nm. The procedure of barium titanat...

2011
Brigitte Korthals Maria Carmen Morant-Minana Marius Schmid Stefan Mecking

Syndiotactic 1,2 polybutadiene nanoparticles (volume average diameter 13 nm) were func tionalized in aqueous dispersion by free radical mercaptan addition. By appropriate choice of both water soluble radical initiator andmercaptan concentration, nanoparticles with a degree of functionalization of up to 85% were prepared using 3 mercaptopropionic acid methyl ester and 3 mercaptopropionic acid. O...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2006
Kirsten L Genson Jason Holzmueller Chaoyang Jiang Jun Xu Jacob D Gibson Eugene R Zubarev Vladimir V Tsukruk

Gold nanoparticles functionalized with amphiphilic polybutadiene-poly(ethylene glycol) (PB-PEG) V-shaped arms formed stable Langmuir monolayers at the air-water and the air-solid interfaces. At these interfaces, the binary arms vertically segregated into a dense polymer corona, which surrounded the gold nanoparticles, preventing their large-scale agglomeration and keeping individual nanoparticl...

1997
Tu Lee Nan Yao Ilhan A. Aksay

Atriblock copolymerof polystyrene-polybutadiene-polystyrene (KratonD1102)hasbeenused topattern barium titanate precursor with nanoscale modulations. The copolymer self-assembles to yield cylindrical polystyrene nanodomains in a polybutadiene matrix. The preorganized thin films of polymer are then selectively OH-functionalized in situ on the unsaturated carbon bonds in the polybutadiene matrix w...

2017
Oliver Bixner Noga Gal Christoph Zaba Andrea Scheberl Erik Reimhult

We present a potential theranostic delivery platform based on the amphiphilic diblock copolymer polybutadiene-block-poly (ethylene oxide) combining covalent fluorescent labeling and membrane incorporation of superparamagnetic iron oxide nanoparticles for multimodal imaging. A simple self-assembly and labeling approach to create the fluorescent and magnetic vesicles is described. Cell uptake of ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید