Multiarm star block and multiarm star mixed-block copolymers via azide-alkyne click reaction

2009 ◽  
Vol 48 (1) ◽  
pp. 99-108 ◽  
Author(s):  
Hakan Durmaz ◽  
Aydan Dag ◽  
Elif Erdogan ◽  
A. Levent Demirel ◽  
Gurkan Hizal ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Click Reaction ◽  
Mixed Block

Fast track access to multi-block copolymers via thiol-bromo click reaction of telechelic dibromo polymers

2019 ◽  
Vol 10 (31) ◽  
pp. 4259-4270 ◽  
Author(s):  
Valentin P. Beyer ◽  
Beatrice Cattoz ◽  
Anthony Strong ◽  
Daniel J. Phillips ◽  
Andrew Schwarz ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Fast Track ◽  
Click Reaction ◽  
Block Length ◽  
Monomer Composition ◽  
Block Number

Multi-block copolymers offer a plethora of exciting properties, easily tuned by modulating parameters such as monomer composition, block length, block number and dispersity.

ASSOCIATION STRUCTURES OF MIXED BLOCK COPOLYMERS OF DIFFERENT POLAR CHAIN LENGTH

2000 ◽  
Vol 21 (1) ◽  
pp. 79-95 ◽  
Author(s):  
Stig E. Friberg ◽  
Jennifer L. Barber ◽  
Zhiqiang Zhang ◽  
Patricia A. Aikens
Keyword(s):  
Block Copolymers ◽  
Chain Length ◽  
Mixed Block

Diels-alder click reaction for the preparation of polycarbonate block copolymers

2013 ◽  
Vol 51 (10) ◽  
pp. 2252-2259 ◽  
Author(s):  
Pinar Sinem Omurtag ◽  
Ufuk Saim Gunay ◽  
Aydan Dag ◽  
Hakan Durmaz ◽  
Gurkan Hizal ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Click Reaction ◽  
Diels Alder

Facile Synthesis of Amphiphilic Bottlebrush Block Copolymers Bearing Pyridine Pendants via Click Reaction from Protected Alkyne Side Groups

2020 ◽  
Vol 53 (6) ◽  
pp. 2209-2219
Author(s):  
Myung-Jin Kim ◽  
Yong-Guen Yu ◽  
Chang-Geun Chae ◽  
Ho-Bin Seo ◽  
Jae-Suk Lee
Keyword(s):  
Block Copolymers ◽  
Click Reaction ◽  
Facile Synthesis

scholarly journals Light Down-Converter Based on Luminescent Nanofibers from the Blending of Conjugated Rod-Coil Block Copolymers and Perovskite through Electrospinning

Polymers ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 84 ◽  
Author(s):  
Dai-Hua Jiang ◽  
Saburo Kobayashi ◽  
Chih-Chun Jao ◽  
Yoshinobu Mato ◽  
Takuya Isono ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Block Copolymer ◽  
Block Copolymers ◽  
Butyl Acrylate ◽  
Click Reaction ◽  
Soft Segment ◽  
Composite Fibers ◽  
Color Tunable ◽  
Perovskite Quantum Dots ◽  
Novel Strategy

We demonstrated a novel strategy for the preparation of light down-converter by combining rod-coil block copolymers with perovskite quantum dots (QDs) through electrospinning. Reports have shown that polymer deformability can be enhanced by incorporating a soft segment and controlled by varying the rod/coil ratio. Therefore, we first synthesized the rod-coil block copolymer through the click reaction of polyfluorene (PF) and poly(n-butyl acrylate) (PBA). Next, the CsPbBr3@PF8k-b-PBA12k composite fibers were fabricated by blending perovskite through electrospinning. Optical spectral evidence demonstrated the success of the strategy, as light down-converters were prepared through the controlled variance of QD/polymer ratios to achieve tunable color and stretchability. This result reveals the potential of using rod-coil block copolymers to fabricate color-tunable perovskite light down-converters.

Introducing the Ugi reaction into polymer chemistry as a green click reaction to prepare middle-functional block copolymers

2014 ◽  
Vol 5 (8) ◽  
pp. 2704-2708 ◽  
Author(s):  
Bin Yang ◽  
Yuan Zhao ◽  
Changkui Fu ◽  
Chongyu Zhu ◽  
Yaling Zhang ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Click Reaction ◽  
Ugi Reaction ◽  
Polymer Chemistry ◽  
Functional Block ◽  
Functional Block Copolymers

The Ugi reaction has been utilized as a new click reaction to synthesize middle-functional copolymers.

Superior proapoptotic activity of curcumin-loaded mixed block copolymer micelles with mitochondrial targeting properties

2018 ◽  
Vol 6 (12) ◽  
pp. 3309-3317 ◽  
Author(s):  
Denitsa Momekova ◽  
Iva Ugrinova ◽  
Marta Slavkova ◽  
Georgi Momekov ◽  
Georgy Grancharov ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Block Copolymers ◽  
Mixed Block ◽  
Mitochondrial Targeting ◽  
Block Copolymer Micelles ◽  
Copolymer Micelles

Multifunctional micelles based on two co-assembled block copolymers are proven to effectively accumulate and deliver curcumin in mitochondria, thus, inducing a much higher proapoptotic activity than single copolymer micelles.

Multisegmented Block Copolymers by 'Click' Coupling of Polymers Prepared by ATRP

2007 ◽  
Vol 60 (6) ◽  
pp. 400 ◽  
Author(s):  
Patricia L. Golas ◽  
Nicolay V. Tsarevsky ◽  
Brent S. Sumerlin ◽  
Lynn M. Walker ◽  
Krzysztof Matyjaszewski
Keyword(s):  
Molecular Weight ◽  
Block Copolymers ◽  
Methyl Methacrylate ◽  
Butyl Acrylate ◽  
Click Reaction ◽  
Size Exclusion ◽  
Scanning Calorimetry ◽  
Poly Methyl Methacrylate ◽  
Propargyl Ether ◽  
Click Coupling

Multisegmented block copolymers were prepared by the step-growth click coupling of well-defined block copolymers synthesized by atom transfer radical polymerization (ATRP). α,ω-Diazido-terminated polystyrene-block-poly(ethylene oxide)-block-polystyrene was coupled with propargyl ether in N,N-dimethylformamide in the presence of a CuBr/N,N,N´,N´´,N´´-pentamethyldiethylenetriamine catalyst. The preparation of multisegmented block copolymers was also demonstrated by the click coupling of propargyl ether with another diazido-terminated triblock copolymer, poly(n-butyl acrylate)-block-poly(methyl methacrylate)-block-poly(n-butyl acrylate), and a diazido-terminated pentablock copolymer, polystyrene-block-poly(n-butyl acrylate)-block-poly(methyl methacrylate)-block-poly(n-butyl acrylate)-block-polystyrene. The formation of a product of higher molecular weight and broader molecular weight distribution was verified by triple-detection size exclusion chromatography, which revealed that typically five to seven block copolymers were linked together during the click reaction. Differential scanning calorimetry and dynamic mechanical analysis revealed that the amphiphilic block copolymer behaves as a viscoelastic fluid, while its corresponding multiblock copolymer is an elastic material. The multisegmented block copolymers with partially miscible segments exhibit higher glass transition temperatures than their precursors.

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