Results 21 to 30 of about 50,873 (302)

Aspects of the Synthesis of Poly(styrene-block-isobutylene-block-styrene) by TiCl4-Co-initiated Cationic Polymerization in Open Conditions

open access: yesMacromol, 2021
The cationic polymerization of isobutylene and its block copolymerization with styrene using DiCumCl/TiCl4/2,6-lutidine initiating system has been studied in open conditions.
Miraslau I. Makarevich   +8 more
doaj   +1 more source

Advances in Intracellular and On‐Surface Polymerization in Living Cells: Implications for Nanobiomedicines

open access: yesAdvanced NanoBiomed Research, 2023
The cellular environment offers some unique features to carry out polymerizations under controlled conditions. Polymerization of monomers in cellular compartments and on the surface of living organisms holds much promise in the engineering of ...
Partha Laskar   +2 more
doaj   +1 more source

Visible Light-Controlled Living Cationic Polymerization of Methoxystyrene

open access: yes, 2021
Photo-controlled living polymerization has received great attention in recent years. However, despite the great success therein, the report on photo-controlled living cationic polymerization has been greatly limited.
Lei, Wang   +9 more
core   +1 more source

Stereospecific cationic RAFT polymerization of bulky vinyl ethers and stereoblock poly(vinyl alcohol) via mechanistic transformation to radical RAFT polymerization of vinyl acetate

open access: yesGiant, 2021
The simultaneous control of molecular weight and tacticity in cationic polymerization remains challenging. Here, we propose a new approach for stereospecific living cationic polymerization by combining cationic reversible addition-fragmentation chain ...
Mineto Uchiyama   +2 more
doaj   +1 more source

Block Copolymer Synthesis by the Combination of Living Cationic Polymerization and Other Polymerization Methods

open access: yesFrontiers in Chemistry, 2021
The foremost limitation of block copolymer synthesis is to polymerize two or more different types of monomers with different reactivity profiles using a single polymerization technique. Controlled living polymerization techniques play a vital role in the
Asmita Dey, Ujjal Haldar, Priyadarsi De
doaj   +1 more source

Hierarchical Self-Assembled Structures from Diblock Copolymer Mixtures by Competitive Hydrogen Bonding Strength

open access: yesMolecules, 2018
In this work we prepared poly(styrene–b–vinylphenol) (PS-b-PVPh) by sequential anionic living polymerization and poly(ethylene oxide-b-4-vinylpyridine) (PEO-b-P4VP) by reversible addition fragmentation chain transfer polymerization (RAFT) by ...
Tzu-Chun Tseng, Shiao-Wei Kuo
doaj   +1 more source

Tyrosine residues initiated photopolymerization in living organisms

open access: yesNature Communications, 2023
Towards intracellular engineering of living organisms, the development of new biocompatible polymerization system applicable for an intrinsically non-natural macromolecules synthesis for modulating living organism function/behavior is a key step. Herein,
Mei Zhu   +6 more
doaj   +1 more source

Protein nanoreactors and native enzymes for controlled/living radical polymerization [PDF]

open access: yes, 2013
The present PhD thesis entitled ‚Protein Nanoreactors and Native Enzymes for Controlled/Living Radical Polymerization‘ began with the hypothesis that protein-catalyst conjugates are able to beneficially influence controlled/living radical polymerization,
Renggli, Kasper
core   +1 more source

Living Polymerization [PDF]

open access: yesThe Chemical Educator, 2014
Synthetic polymers are long chain molecules containing repeat units of monomers. The polymers can be prepared by free radical polymerization, condensation polymerization and by living polymerization. In a living polymerization, the molecular weight is directly proportional to conversion.
openaire   +2 more sources

Recent Developments in C–H Activation for Materials Science in the Center for Selective C–H Activation

open access: yesMolecules, 2018
Organic electronics is a rapidly growing field driven in large part by the synthesis of π-conjugated molecules and polymers. Traditional aryl cross-coupling reactions such as the Stille and Suzuki have been used extensively in the synthesis of &pi ...
Junxiang Zhang   +5 more
doaj   +1 more source

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