Photoluminescence of polysiloxane containing mesogenic 4-cyanobiphenyl in solution

Multicompartment Polymeric Micelles Based on Hydrocarbon and Fluorocarbon Polymerizable Surfactants

“…To ensure the presence of micelles in the reaction mixture at all stages of the polymerization, a surfactant concentration equivalent to the cmc (or equivalent to the second cmc for terpolymerization with the HS6/FS3 mixture) was added to the acrylamide solution prior to polymerization. Such a procedure is required since molecularly dispersed surfactants polymerize at a much slower rate than in the micellar state. , That this can happen was confirmed for the present system by a quantitative analysis (two-phase titration method 21 ) of the unreacted surfmer, whose concentration was found close to the cmc.…”

Multicompartment Polymeric Micelles Based on Hydrocarbon and Fluorocarbon Polymerizable Surfactants

“…To ensure the presence of micelles in the reaction mixture at all stages of the polymerization, a surfactant concentration equivalent to the cmc (or equivalent to the second cmc for terpolymerization with the HS6/FS3 mixture) was added to the acrylamide solution prior to polymerization. Such a procedure is required since molecularly dispersed surfactants polymerize at a much slower rate than in the micellar state. , That this can happen was confirmed for the present system by a quantitative analysis (two-phase titration method 21 ) of the unreacted surfmer, whose concentration was found close to the cmc.…”

Water-Soluble Polymers. 77. Amphoteric Cyclocopolymers with Sulfobetaine Units: Phase Behavior in Aqueous Media and Solubilization of p-Cresol in Microdomains

“…The sulfobetaine monomer, 3-(N,N-diallyl-N-methylammonio)propanesulfonate, has been cyclocopolymerized with N,N-diallyl-N-methylamine. 13 C NMR analysis indicates that the resulting polymers maintain the fivemembered-ring structure common to cyclopolymerized diallylammonium salts. Reactivity ratio studies indicate random incorporation of the two mer units.…”

“…Representative inverse gated decoupled 13 C NMR spectra are shown in Figure 1 for the purified samples. Peak assignments were confirmed through DEPT135 analysis (data not shown).…”

Copper Iodide Clusters Coordinated by Emissive Cyanobiphenyl-Based Ligands

“…Regarding the HE emission band, its origin can be attributed to an intra-ligand (IL) π-π* transition centered on the CBP group, in analogy with previous reports on CBP derivatives. [55][56][57][58][59] The monomer emission reported around 370 nm can be shifted to lower energy for excimers. The HE band of C1 at λmax = 363 nm in solution can be thus attributed to monomers whereas excimers are formed in solidstate with λmax = 404 nm.…”

“…The HE band of C1 at λ max = 363 nm in solution can be thus attributed to monomers, whereas excimers are formed in the solid state with λ max = 404 nm. This is in accordance with the nanosecond time scale of the lifetimes measured in solution and previous reports. − Corresponding CBP IL absorption transitions around 300 nm were confirmed by the calculations. The redshift of this absorption band for C2 (λ max = 275 nm) compared with that of the other clusters can be due to the electronic effect of the PPh 3 moiety onto the CBP, stronger in that case without any spacer.…”

Multicompartment Polymeric Micelles Based on Hydrocarbon and Fluorocarbon Polymerizable Surfactants

“…To ensure the presence of micelles in the reaction mixture at all stages of the polymerization, a surfactant concentration equivalent to the cmc (or equivalent to the second cmc for terpolymerization with the HS6/FS3 mixture) was added to the acrylamide solution prior to polymerization. Such a procedure is required since molecularly dispersed surfactants polymerize at a much slower rate than in the micellar state. , That this can happen was confirmed for the present system by a quantitative analysis (two-phase titration method 21 ) of the unreacted surfmer, whose concentration was found close to the cmc.…”

Water-Soluble Polymers. 77. Amphoteric Cyclocopolymers with Sulfobetaine Units: Phase Behavior in Aqueous Media and Solubilization of p-Cresol in Microdomains

“…The sulfobetaine monomer, 3-(N,N-diallyl-N-methylammonio)propanesulfonate, has been cyclocopolymerized with N,N-diallyl-N-methylamine. 13 C NMR analysis indicates that the resulting polymers maintain the fivemembered-ring structure common to cyclopolymerized diallylammonium salts. Reactivity ratio studies indicate random incorporation of the two mer units.…”

“…Representative inverse gated decoupled 13 C NMR spectra are shown in Figure 1 for the purified samples. Peak assignments were confirmed through DEPT135 analysis (data not shown).…”

Copper Iodide Clusters Coordinated by Emissive Cyanobiphenyl-Based Ligands

“…Regarding the HE emission band, its origin can be attributed to an intra-ligand (IL) π-π* transition centered on the CBP group, in analogy with previous reports on CBP derivatives. [55][56][57][58][59] The monomer emission reported around 370 nm can be shifted to lower energy for excimers. The HE band of C1 at λmax = 363 nm in solution can be thus attributed to monomers whereas excimers are formed in solidstate with λmax = 404 nm.…”

“…The HE band of C1 at λ max = 363 nm in solution can be thus attributed to monomers, whereas excimers are formed in the solid state with λ max = 404 nm. This is in accordance with the nanosecond time scale of the lifetimes measured in solution and previous reports. − Corresponding CBP IL absorption transitions around 300 nm were confirmed by the calculations. The redshift of this absorption band for C2 (λ max = 275 nm) compared with that of the other clusters can be due to the electronic effect of the PPh 3 moiety onto the CBP, stronger in that case without any spacer.…”

Multicompartment Polymeric Micelles Based on Hydrocarbon and Fluorocarbon Polymerizable Surfactants

“…To ensure the presence of micelles in the reaction mixture at all stages of the polymerization, a surfactant concentration equivalent to the cmc (or equivalent to the second cmc for terpolymerization with the HS6/FS3 mixture) was added to the acrylamide solution prior to polymerization. Such a procedure is required since molecularly dispersed surfactants polymerize at a much slower rate than in the micellar state. , That this can happen was confirmed for the present system by a quantitative analysis (two-phase titration method 21 ) of the unreacted surfmer, whose concentration was found close to the cmc.…”

Water-Soluble Polymers. 77. Amphoteric Cyclocopolymers with Sulfobetaine Units: Phase Behavior in Aqueous Media and Solubilization of p-Cresol in Microdomains

“…The sulfobetaine monomer, 3-(N,N-diallyl-N-methylammonio)propanesulfonate, has been cyclocopolymerized with N,N-diallyl-N-methylamine. 13 C NMR analysis indicates that the resulting polymers maintain the fivemembered-ring structure common to cyclopolymerized diallylammonium salts. Reactivity ratio studies indicate random incorporation of the two mer units.…”

“…Representative inverse gated decoupled 13 C NMR spectra are shown in Figure 1 for the purified samples. Peak assignments were confirmed through DEPT135 analysis (data not shown).…”

Copper Iodide Clusters Coordinated by Emissive Cyanobiphenyl-Based Ligands

“…Regarding the HE emission band, its origin can be attributed to an intra-ligand (IL) π-π* transition centered on the CBP group, in analogy with previous reports on CBP derivatives. [55][56][57][58][59] The monomer emission reported around 370 nm can be shifted to lower energy for excimers. The HE band of C1 at λmax = 363 nm in solution can be thus attributed to monomers whereas excimers are formed in solidstate with λmax = 404 nm.…”

“…The HE band of C1 at λ max = 363 nm in solution can be thus attributed to monomers, whereas excimers are formed in the solid state with λ max = 404 nm. This is in accordance with the nanosecond time scale of the lifetimes measured in solution and previous reports. − Corresponding CBP IL absorption transitions around 300 nm were confirmed by the calculations. The redshift of this absorption band for C2 (λ max = 275 nm) compared with that of the other clusters can be due to the electronic effect of the PPh 3 moiety onto the CBP, stronger in that case without any spacer.…”