80232-65-1Relevant articles and documents
Core Cross-Linked Multiarm Star Polymers with Aggregation-Induced Emission and Temperature Responsive Fluorescence Characteristics
Zhang, Zhen,Bilalis, Panayiotis,Zhang, Hefeng,Gnanou, Yves,Hadjichristidis, Nikos
, p. 4217 - 4226 (2017)
Aggregation-induced emission (AIE) active core cross-linked multiarm star polymers, carrying polystyrene (PS), polyethylene (PE), or polyethylene-b-polycaprolactone (PE-b-PCL) arms, have been synthesized through an arm-first strategy, by atom transfer radical copolymerization (ATRP) of a double styrene-functionalized tetraphenylethene (TPE-2St) used as a cross-linker with linear arm precursors possessing terminal ATRP initiating moieties. Polyethylene macroinitiator (PE-Br) was prepared via the polyhomologation of dimethylsulfoxonium methylide with triethylborane followed by oxidation/hydrolysis and esterification of the produced PE-OH with 2-bromoisobutyryl bromide; polyethylene-block-poly(?-caprolactone) diblock macroinitiator was derived by combining polyhomologation with ring-opening polymerization (ROP). All synthesized star polymers showed AIE-behavior either in solution or in bulk. At high concentration in good solvents (e.g., THF, or toluene) they exhibited low photoluminescence (PL) intensity due to the inner filter effect. In sharp contrast to the small molecule TPE-2St, the star polymers were highly emissive in dilute THF solutions. This can be attributed to the cross-linked structure of poly(TPE-2St) core which restricts the intramolecular rotation and thus induces emission. In addition, the PL intensity of PE star polymers in THF(solvent)/n-hexane(nonsolvent) mixtures, due to their nearly spherical shape, increased when the temperature decreased from 55 to 5 °C with a linear response in the range 40-5 °C.
H2O2-Responsive amphiphilic polymer with aggregation-induced emission (AIE) for DOX delivery and tumor therapy
Liang, Ya-Xuan,Sun, Xue-Yi,Xu, De-Zhong,Huang, Jun-Ru,Tang, Quan,Lu, Zhong-Lin,Liu, Rui
supporting information, (2021/12/27)
Stimuli-responsive drug delivery systems (DDSs) based on amphiphilic polymers have attracted much attention. In this study, we reported an innovative H2O2-responsive amphiphilic polymer (TBP), bearing a H2O2-sen
Zinc ion fluorescent probe based on tetraphenyl ethylene as well as preparation method and application thereof
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Paragraph 0041-0042, (2021/01/24)
The invention provides a zinc ion fluorescent probe based on tetraphenyl ethylene as well as a preparation method and application thereof. Based on a photo-induced electron transfer (PET) mechanism, anovel TPE-3N fluorescent probe taking tetraphenyl ethyl