On the dynamics of moderately crosslinked networks

1991 ◽  
Vol 95 (2) ◽  
pp. 1316-1317 ◽  
Author(s):  
Jens‐Uwe Sommer
Keyword(s):  
Crosslinked Networks

Thermoresponsive hybrid double-crosslinked networks using magnetic iron oxide nanoparticles as crossing points

2018 ◽  
Vol 9 (37) ◽  
pp. 4642-4650 ◽  
Author(s):  
Thomas Blin ◽  
Antoine Niederberger ◽  
Lazhar Benyahia ◽  
Jérôme Fresnais ◽  
Véronique Montembault ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Alder Reaction ◽  
Diels Alder ◽  
Oxide Nanoparticles ◽  
Magnetic Iron Oxide Nanoparticles ◽  
Diels Alder Reaction ◽  
Crosslinked Networks ◽  
Stimuli Sensitive

Preparation and characterization of stimuli-sensitive hybrid double-crosslinked hydrogels based on iron oxide nanoparticles as the nano-crosslinkers and a difuran-functionalized PEO as the diene partner for the thermoreversible Diels–Alder reaction.

Reactive Mesogenes: Synthesis and Application in Optoelectronic Devices

2001 ◽  
Vol 709 ◽  
Author(s):  
Peter Strohriegl ◽  
Doris Hanft ◽  
Markus Jandke ◽  
Thomas Pfeuffer
Keyword(s):  
Liquid Crystalline ◽  
Room Temperature ◽  
Polymer Networks ◽  
Optoelectronic Devices ◽  
Chiral Molecules ◽  
Glass Forming ◽  
Writing Beam ◽  
Crystalline Core ◽  
Crosslinked Networks ◽  
The Stability

ABSTRACTReactive mesogenes posess polymerizable groups attached to a rigid, liquid crystalline core. From such molecules, densely crosslinked networks in which the liquid crystalline order is permanentely fixed can be formed by photopolymerization.Our major synthetic goal was the formation of glass forming reactive mesogenes. Such compounds do not crystallize upon cooling but vitrify and form supercooled LC-phases ('LC-glasses'). They exhibit broad LC-phases and enable us to carry out photopolymerization in a broad range of temperatures.We have systematically investigated how the topology of the reactive mesogenes influences the stability of the resulting glasses. Comparing twin molecules with three- and four-armed stars we found that the supercooled LC-phase in the three-armed stars has a stability superior to both twin molecules and four-armed stars. In the three-armed star Triple-4 with a suitable substituent pattern the supercooled LC-phase is stable at room temperature for at least nine months. Doped with suitable chiral molecules the glass forming nematics form cholesteric phases which were used for cholesteric polymer networks and for polarization holograms with one s-and one p-polarized writing beam.Furthermore we have extended our synthetic efforts to reactive mesogenes with three or five conjugated fluorene units as LC-core. After orientation, the mesogenes were photocrosslinked and used as active layer in OLEDs that emit highly polarized blue light.

Dual Sulfide-Disulfide Crosslinked Networks with Rapid and Room Temperature Self-Healability

2015 ◽  
Vol 36 (13) ◽  
pp. 1255-1260 ◽  
Author(s):  
So Young An ◽  
Seung Man Noh ◽  
Joon Hyun Nam ◽  
Jung Kwon Oh
Keyword(s):  
Room Temperature ◽  
Crosslinked Networks

An investigation of cell growth and detachment from thermoresponsive physically crosslinked networks

2017 ◽  
Vol 159 ◽  
pp. 159-165 ◽  
Author(s):  
Deirdre Healy ◽  
Maria Nash ◽  
Alexander Gorleov ◽  
Kerry Thompson ◽  
Peter Dockery ◽  
...  
Keyword(s):  
Cell Growth ◽  
Crosslinked Networks ◽  
Physically Crosslinked

The effect of pendant alkyl chain length on the barrier properties of epoxy/amine crosslinked networks

Polymer ◽  
2017 ◽  
Vol 132 ◽  
pp. 133-142 ◽  
Author(s):  
J.H. Vergara ◽  
J.J. La Scala ◽  
C.K. Henry ◽  
J.M. Sadler ◽  
S.K. Yadav ◽  
...  
Keyword(s):  
Chain Length ◽  
Alkyl Chain ◽  
Barrier Properties ◽  
Alkyl Chain Length ◽  
Epoxy Amine ◽  
Crosslinked Networks
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