White photoluminescent material based on a functional polysiloxane complex with lanthanide ions (Eu3+ and Dy3+)

Role of Li+ion in the luminescence enhancement of lanthanide ions: favorable modifications in host matrices

“…Pr 3+ , Nd 3+ , Ho 3+ , Er 3+ , Sm 3+ , Eu 3+ , Tb 3+ , Dy 3+ , Tm 3+ and Yb 3+ ), which is a forbidden transition, gives sharp and intense spectral lines (from UV to infrared region) with a lifetime on the order of microsecond. [20][21][22][23][24][25][26][27][28][29][30] Further, as the 4f orbital remain shielded by 5s and 5p orbitals, 4f-4f transitions are much less inuenced by the external environment (crystal eld of host matrices). [20][21][22][23][24][25][26][27][28][29][30] In recent years, research of lanthanide-based luminescence materials has been focused to exploit the unique features of lanthanides in various other novel applications, viz.…”

Naphthalimide‐and Methacrylate‐Functionalized Polysiloxanes: Visible‐Light Photoinitiators, Modifiers for Polyurethane Acrylate and Photocurable Coatings

“…Therefore, the thermal behavior of SND‐MAs have been investigated by differential scanning calorimeter (DSC). Unfortunately, we did not find out their obvious glass transition temperatures according to their DSC curves (the representative DSC curves for SND‐MA‐I‐4 was shown in Figure S7 in Supporting Information) . In comparison to SND‐MAs, ND‐PM behaves a very low photoinitiating activity with long inhibition time and low double bond conversion (Figure a).…”

Preparation of polysiloxane oligomers bearing benzoxazine side groups and tunable properties of their thermosets

“…Compared to SBZ, the peak at 1089 cm −1 attributed to SiOCH 3 disappeared in the I‐40 spectrum. The new peaks at 1085 cm −1 and 1022 cm −1 attributed to SiOSi emerged, indicating the formation of polysiloxane oligomers . Meanwhile, the characteristic absorptions of benzoxazine structure (926 cm −1 ) also existed, indicating the incorporation of benzoxazine into the polysiloxane.…”