Chain-Growth Suzuki Polymerization of n-Type Fluorene Copolymers
نویسندگان
چکیده
منابع مشابه
Catalytic production of olefin block copolymers via chain shuttling polymerization.
We report a catalytic system that produces olefin block copolymers with alternating semicrystalline and amorphous segments, achieved by varying the ratio of alpha-olefin to ethylene in the two types of blocks. The system uses a chain shuttling agent to transfer growing chains between two distinct catalysts with different monomer selectivities in a single polymerization reactor. The block copoly...
متن کاملInterface energetics of polyfluorene and fluorene-arylamine copolymers
The energy level alignment at interfaces between poly(9,9’-dioctylfluorene) (F8), poly(9,9'-dioctylfluorene-co-bisN,N '-(4-butylphenyl)-diphenylamine) (TFB) and poly(9,9’-dioctylfluorene-co-bis-N,N’-(4-butylphenyl)-bis-N,N’phenyl-1,4-phenylenediamine) (PFB) and substrates with work function ranging from 4.3 eV to 5.1 eV is investigated via ultra-violet photoemission spectroscopy. Vacuum level a...
متن کاملUse of N‐methyliminodiacetic acid boronate esters in suzuki‐miyaura cross‐coupling polymerizations of triarylamine and fluorene monomers
Polytriarylamine copolymers can be prepared by Suzuki-Miyaura cross-coupling reactions of bis N-methyliminodiacetic acid (MIDA) boronate ester substituted arylamines with dibromo arenes. The roles of solvent composition, temperature, reaction time, and co-monomer structure were examined and (co)polymers prepared containing 9, 9-dioctylfluorene (F8), 4-sec-butyl or 4-octylphenyl diphenyl amine (...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Macromolecules
سال: 2011
ISSN: 0024-9297,1520-5835
DOI: 10.1021/ma201934q