Results 21 to 30 of about 42,028 (156)

Synthesis and crystal structures of multifunctional tosylates as basis for star-shaped poly(2-ethyl-2-oxazoline)s

Beilstein Journal of Organic Chemistry, 2010
The synthesis of well-defined polymer architectures is of major importance for the development of complex functional materials. In this contribution, we discuss the synthesis of a range of multifunctional star-shaped tosylates as potential initiators for
Richard Hoogenboom, Martin W. M. Fijten, Guido Kickelbick, Ulrich S. Schubert   +3 more
doaj   +1 more source

Synthesis of polyisobutylene-polycaprolactone block copolymers using enzyme catalysis

eXPRESS Polymer Letters, 2016
The synthesis of poly(isobutylene-b-ε-caprolactone) diblock and poly(ε-caprolactone-b-isobutylene-b-ε-caprolactone) triblock copolymers was accomplished using a combination of living carbocationic polymerization of isobutylene (IB) with the ring-opening ...
M. Castano, A. Alvarez, M. L. Becker, J. E. Puskas   +3 more
doaj   +1 more source

living polymerization [PDF]

, 2014
Citation: 'living polymerization' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.L03597 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

Near-Infrared Photobiomodulation of Living Cells, Tubulin, and Microtubules In Vitro

Frontiers in Medical Technology, 2022
We report the results of experimental investigations involving photobiomodulation (PBM) of living cells, tubulin, and microtubules in buffer solutions exposed to near-infrared (NIR) light emitted from an 810 nm LED with a power density of 25 mW/cm2 ...
Michael Staelens, Elisabetta Di Gregorio, Aarat P. Kalra, Hoa T. Le, Nazanin Hosseinkhah, Mahroo Karimpoor, Lew Lim, Jack A. Tuszyński, Jack A. Tuszyński   +8 more
doaj   +1 more source

Effect of Reactant Concentration Variations on the Kinetics of Atom Transfer Radical Polymerization of Acrylonitrile [PDF]

علوم و تکنولوژی پلیمر, 2013
Polyacrylontrile synthesis, via atom transfer radical polymerization, is studied in various initiator concentrations, transitional metal catalyst and different concentrations of CuBr2.
H. Roghani-Mamaqani, V. Haddadi-Asl, M. Najafi, M. Salami-Kalajahi   +3 more
doaj   +1 more source

Biocatalytic nanoparticles for the stabilization of degassed single electron transfer-living radical pickering emulsion polymerizations

Nature Communications, 2020
The use of solid particles to stabilize Pickering emulsions is a particularly attractive avenue, but oxygen sensitivity remains an obstacle in controlled polymerization reactions.
Adrian Moreno, Mika H. Sipponen
doaj   +1 more source

Synthesis of poly-α/β-peptides with tunable sequence via the copolymerization on N-carboxyanhydride and N-thiocarboxyanhydride

iScience, 2021
Summary: The fascinating functions of proteins and peptides in biological systems have attracted intense interest to explore their mimics using polymers, including polypeptides synthesized from polymerization.
Min Zhou, Jingcheng Zou, Longqiang Liu, Ximian Xiao, Shuai Deng, Yueming Wu, Jiayang Xie, Zihao Cong, Zhemin Ji, Runhui Liu   +9 more
doaj   +1 more source

Site-selected in situ polymerization for living cell surface engineering

Nature Communications, 2023
The construction of polymer-based mimicry on cell surface to manipulate cell behaviors and functions offers promising prospects in the field of biotechnology and cell therapy.
Yihong Zhong, Lijia Xu, Chen Yang, Le Xu, Guyu Wang, Yuna Guo, Songtao Cheng, Xiao Tian, Changjiang Wang, Ran Xie, Xiaojian Wang, Lin Ding, Huangxian Ju   +12 more
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Controlled (Co)Polymerization of Methacrylates Using a Novel Symmetrical Trithiocarbonate RAFT Agent Bearing Diphenylmethyl Groups

Molecules, 2021
Herein, we report a novel type of symmetrical trithiocarbonate chain transfer agent (CTA) based diphenylmethyl as R groups. The utilization of this CTA in the Reversible Addition-Fragmentation chain Transfer (RAFT) process reveals an efficient control in
Alvaro Leonel Robles Grana, Hortensia Maldonado-Textle, José Román Torres-Lubián, Claude St Thomas, Ramón Díaz de León, José Luis Olivares-Romero, Luis Valencia, Francisco Javier Enríquez-Medrano   +7 more
doaj   +1 more source

Ring-opening polymerization

Chemistry Teacher International, 2021
Ring-opening polymerization is defined by IUPAC (Penczek, S., Moad, G. (2008). Glossary of the terms related to kinetics, thermodynamics, and mechanisms of polymerization.
Penczek Stanislaw, Pretula Julia, Slomkowski Stanislaw   +2 more
doaj   +1 more source