Results 51 to 60 of about 26,493 (337)

Tandem ring-closing metathesis reaction with a ruthenium catalyst containing a N-heterocyclic ligand [PDF]

, 2001
The highly active catalyst 2 was used in tandem RCM to make molecules with various ring systems containing α,β-unsaturated carbonyl ...
Choi, Tae-Lim, Grubbs, Robert H.
core   +1 more source

Intrinsic Photoactive Star ZnPc–Poly(glutamate) Nanoplatforms for Multimodal Glioblastoma Therapy and Brain‐Targeted Delivery

Advanced Functional Materials, EarlyView.
An intrinsic photoactive star‐shaped zinc phtalocyanine‐poly(L‐glutamic acid) (ZnPc‐PGA) nanoplatform for multimodal glioblastoma (GBM) therapy and brain‐targeted elivery. A ZnPc‐PGA‐based multifunctional theranostic nanocarrier platform enables image‐guided, multimodal GBM therapy. ZnPc‐PGA nanocarriers support the integration of fluorescence imaging,
Amina Benaicha‐Fernández, Teodora Ranđelović, Ana Armiñán, Víctor Sebastián, Manuel Fuentes, Cristián Huck‐Iriart, Esther Masiá, Paula Carrascosa‐Marco, Pablo Juanes‐Velasco, Snežana Đorđević, Clara Bayona, Ignacio Ochoa, Maria Medel, Inmaculada Conejos‐Sánchez, María J. Vicent   +14 more
wiley   +1 more source

Cyclic Ruthenium-Alkylidene Catalysts for Ring-Expansion Metathesis Polymerization [PDF]

, 2008
A series of cyclic Ru-alkylidene catalysts have been prepared and evaluated for their efficiency in ring-expansion metathesis polymerization (REMP). The catalyst structures feature chelating tethers extending from one N-atom of an N-heterocyclic carbene (
Boydston, Andrew J., Gorodetskaya, Irina A., Grubbs, Robert H., Kornfield, Julia A., Xia, Yan   +4 more
core   +1 more source

Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications

Advanced Functional Materials, EarlyView.
Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi, Norma Mallegni, Andrea Dorigato, Mario Milazzo   +3 more
wiley   +1 more source

"Supported Ziegler-Natta catalysts from MgCl2·nROH precursors and its catalytic behaviors for diene copolymerization"

Hecheng xiangjiao gongye
The precursor MgCl2 · nROH of supported Ziegler Natta catalyst was prepared by chemical activation method, and different pre catalysts TiCl4/MgCl2 (C-Cat) were prepared by loading TiCl4.
FAN Xun-zhang, ZHAO Yuan-jin, LUO Shu-fang, HE Ai-hua?
doaj   +1 more source

Synthesis of novel styrene-olefin triblock copolymer via living anionic polymerization [PDF]

Polyolefins Journal
Innovative strides in polymer synthesis have led to the successful living anionic polymerization of styrene-olefin triblock copolymers, yielding varying molecular weights and a remarkably narrow dispersity (Đ) in cyclohexane solvent at 45°C, initiated by
Mohammad Jozaghkar, Farshid Ziaee
doaj   +1 more source

Synthesis of High-Molecular-Weight Branched Polyethylene Using a Hybrid “Sandwich” Pyridine-Imine Ni(II) Catalyst

Frontiers in Chemistry, 2022
Most pyridine-imine Ni(II) and Pd(II) catalysts tend to yield low-molecular-weight polyethylene and ethylene-based copolymers in olefin insertion polymerization, as the unilateral axial steric structure of such complexes often cannot provide effective ...
You Ge, You Ge, Qi Cai, Yuyin Wang, Jiangang Gao, Yue Chi, Shengyu Dai, Shengyu Dai   +7 more
doaj   +1 more source

Functionalized hyperbranched polymers via olefin metathesis [PDF]

, 2009
Hyperbranched polymers are highly branched, three-dimensional macromolecules which are closely related to dendrimers and are typically prepared via a one-pot polycondensation of AB_(n≥2) monomers.^1 Although hyperbranched macromolecules lack the ...
Gorodetskaya, Irina A., Gorodetsky, Alon A., Grubbs, Robert H., Vinogradova, Ekaterina V.   +3 more
core   +1 more source

Nanoparticle Shape Dictates Catalytic Performance in Selective Hydrogenation of Butadiene Over Au‐Pd Core‐Shell Nanoparticles

Advanced Functional Materials, EarlyView.
Controlling the exposed crystal facet of shape‐controlled Au‐Pd core‐shell catalysts though colloidal synthesis enhances their catalytic performance in the industrially relevant selective hydrogenation of butadiene. ABSTRACT Selective hydrogenation of butadiene is a critical step in purification of alkene feedstocks for polymer production and is ...
Marta Perxés Perich, Jan‐Willem Lankman, Petra E. de Jongh, Jessi E. S. van der Hoeven   +3 more
wiley   +1 more source

Synthesis of Fluorine-18 Functionalized Nanoparticles for use as in vivo Molecular Imaging Agents [PDF]

, 2008
Nanoparticles containing fluorine-18 were prepared from block copolymers made by ring opening metathesis polymerization (ROMP). Using the fast initiating ruthenium metathesis catalyst (H_2IMes)(pyr)_2(Cl)_2Ru=CHPh, low polydispersity amphiphilic block ...
, X. K., A. Guo, A. M. Morawski, A. M. Smith, C. C. Lee, C. Slugovc, C. W. Bielawski, C. W. Bielawski, D. F. Baban, D. W. Bartlett, E. D. Pressly, E. M. Jagoda, E. M. Rohren, F. Henselwood, F. M. Menger, G. J. Liu, H. A. Nabi, H. D. Maynard, H. Kobayashi, H. Maeda, H. Maeda, H. R. Ihre, I. Brigger, J. A. Love, J. B. Matson, J. Heidel, J. R. Heath, K. D. Camm, K. Fukukawa, L. Cai, L. H. Reddy, M. F. Ilker, M. Ferrari, M. L. Adams, M. L. Schipper, M. Licciardi, M. Rawat, N. K. Jain, N. Malik, R. Gref, R. Sinha, S. K. Hobbs, S. M. Lee, S. M. Moghimi, T. L. Choi, V. Bagalkot, V. P. Tochilin, V. P. Torchilin, V. P. Torchilin, V. P. Torchilin, W. J. M. Mulder, W. S. Seo, X. Michalet, Y. Matsumura, Z. Yang   +54 more
core   +3 more sources