Molecular Motions in Poly(ferrocenes):  Solid-State Deuterium NMR Studies of Poly(ferrocenylsilanes) near Their Glass Transition Temperature

1999 ◽  
Vol 32 (4) ◽  
pp. 1321-1324 ◽  
Author(s):  
Kevin Kulbaba ◽  
Peter M. Macdonald ◽  
Ian Manners
Keyword(s):  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Solid State ◽  
Deuterium Nmr ◽  
Molecular Motions ◽  
Nmr Studies

Molecular motions in glassy polycarbonate below its glass transition temperature

2006 ◽  
Vol 352 (42-49) ◽  
pp. 5072-5075 ◽  
Author(s):  
Silvia Arrese-Igor ◽  
Olatz Mitxelena ◽  
Arantxa Arbe ◽  
Angel Alegría ◽  
Juan Colmenero ◽  
...  
Keyword(s):  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Molecular Motions

Synthesis and Characterization of Novel Polyfluorene Derivatives

2013 ◽  
Vol 815 ◽  
pp. 443-447
Author(s):  
Li Di Zhou ◽  
Xiao Dan Hu ◽  
Shao Hong Wang ◽  
Zhao Xia Hou ◽  
Mei Han Wang
Keyword(s):  
Glass Transition ◽  
Thermal Properties ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Solid State ◽  
Coupling Reaction ◽  
Synthesis And Characterization ◽  
Sonogashira Coupling ◽  
Sonogashira Coupling Reaction

A novel series of copolymers containing fluorene units are synthesized by Sonogashira coupling reaction in mild condition. Benzene, naphthalene and anthracene are co-polymerized with ethynylfluorene, respectively. The structures are confirmed by NMR, Mass, Elemental analysis and GPC. The polymers have good thermal properties with glass-transition temperature of 90-155°C(Tg), and they have bandgaps from 2.21-2.77 eV. The results of photoluminescence in solid state show that introduction of huge chromophore could effectively suppress the formation of aggregates and excimers which typically cause red-shifted or new emission.

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