pH /enzyme/light triple‐responsive vesicles from lysine‐based amphiphilic diblock copolymers

2021 ◽  
Author(s):  
Guoyang Qin ◽  
Cong Hu ◽  
Yanfen Jiang ◽  
Shuqi Dong ◽  
Li Liu ◽  
...  
Keyword(s):  
Diblock Copolymers ◽  
Amphiphilic Diblock Copolymers

Amphiphilic diblock copolymers based on ethylene oxide and epoxides bearing aliphatic side chains

2012 ◽  
Vol 3 (8) ◽  
pp. 2148 ◽  
Author(s):  
Anne-Laure Brocas ◽  
Matthieu Gervais ◽  
Stephane Carlotti ◽  
Stergios Pispas
Keyword(s):  
Ethylene Oxide ◽  
Diblock Copolymers ◽  
Side Chains ◽  
Amphiphilic Diblock Copolymers

Amphiphilic Diblock Copolymers of Poly(glycidol) with Biodegradable Polyester/Polycarbonate. Organocatalytic One-Pot ROP and Self-Assembling Property

2021 ◽  
Author(s):  
Tingyu He ◽  
Atsushi Narumi ◽  
Yanqiu Wang ◽  
Liang Xu ◽  
Shin-ichiro Sato ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Diblock Copolymers ◽  
Amphiphilic Block Copolymers ◽  
Synthetic Method ◽  
Biodegradable Polyester ◽  
One Pot ◽  
Self Assembling ◽  
Amphiphilic Diblock Copolymers

A synthetic method for a series of poly(glycidol) (PG)-based amphiphilic block copolymers is presented with an emphasis on the catalyst switch method from an organic superbase (t-Bu-P4) to another with...

scholarly journals Self-restoring polymer brushes under tribological stress and the biomedical applications

MRS Advances ◽  
2016 ◽  
Vol 1 (27) ◽  
pp. 1971-1976
Author(s):  
Troels Røn ◽  
Irakli Javakhishvili ◽  
Søren Hvilsted ◽  
Katja Jankova ◽  
Seunghwan Lee
Keyword(s):  
Polymer Brushes ◽  
Diblock Copolymers ◽  
Polymer Chains ◽  
Aqueous Environment ◽  
Pdms Film ◽  
Pdms Surface ◽  
Tribological Application ◽  
Optimal Functions ◽  
Amphiphilic Diblock Copolymers

ABSTRACTFor biological and mechanical systems involving moving parts, surface slipperiness is often a critical attribute for their optimal functions. Surface grafting with hydrophilic polymers is a powerful means to render materials slippery in aqueous environment. In “inverted grafting-to approach”, the hydrophilic polymer chains of amphiphilic diblock copolymers dispersed within a poly(dimethylsiloxane) (PDMS) network are selectively segregated upon exposure to aqueous solution. This allows formation of extremely stable brush-like polymer layers. Tribological application of inverted grafting-to approach was successfully demonstrated with PDMS-block-poly(acrylic acid) (PDMS-b-PAA) dispersed within thin PDMS films on PDMS blocks by showing friction coefficients (µ) of ca 10-2 to 10-3, depending on the load, pH and buffer salinity in the absence of other external re-supply of PAA chains. Further manipulations of the thin PDMS film incorporating PDMS-b-PAA to optimize the tribological properties are presented. Lastly, first trials to employ PAA-grafted PDMS surface to generate in-vitro mucosae model are also presented and discussed.

Synthesis, characterization and association behavior of linear-dendritic amphiphilic diblock copolymers based on poly(ethylene oxide) and a dendron derived from 2,2′-bis(hydroxymethyl)propionic acid

2015 ◽  
Vol 6 (12) ◽  
pp. 2274-2282 ◽  
Author(s):  
Weiwei Zhang ◽  
Weiwei Jiang ◽  
Delong Zhang ◽  
Guangyue Bai ◽  
Pengxiao Lou ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Ethylene Oxide ◽  
Propionic Acid ◽  
Diblock Copolymers ◽  
Association Behavior ◽  
Poly Ethylene Oxide ◽  
Amphiphilic Diblock Copolymers ◽  
Poly Ethylene

Two new amphiphilic linear-dendritic block copolymers have been synthesized and characterized. And their association behaviors have also been studied.

Chemically Tuned Amphiphilic Diblock Copolymers Dispersed in Water:  From Colloids to Soluble Macromolecules

Langmuir ◽  
2005 ◽  
Vol 21 (5) ◽  
pp. 1712-1718 ◽  
Author(s):  
Denis D. Bendejacq ◽  
Virginie Ponsinet ◽  
Mathieu Joanicot
Keyword(s):  
Diblock Copolymers ◽  
Amphiphilic Diblock Copolymers

Self-Assemble Behavior of Amphiphilic Diblock Copolymer of Methoxy Poly (Ethylene Glycol)/Polyester

2011 ◽  
Vol 295-297 ◽  
pp. 11-15
Author(s):  
Hao Zhou ◽  
Qing Hong Liang ◽  
Xiang Ke Shi ◽  
Li Hua Lu ◽  
Li Qun Zhang ◽  
...  
Keyword(s):  
Polyethylene Glycol ◽  
Light Scattering ◽  
Diblock Copolymer ◽  
Diblock Copolymers ◽  
Average Diameter ◽  
Core Shell ◽  
Amphiphilic Diblock Copolymer ◽  
Amphiphilic Diblock Copolymers ◽  
Methoxy Polyethylene Glycol ◽  
Solution Polycondensation

Amphiphilic diblock copolymers based on methoxy polyethylene glycol (MePEG), 1, 6-hexanediol and maleic anhydride with different molar composition were synthesized by solution polycondensation. Self-assemble behavior of amphiphilic diblock copolymer in different solvents by dialyzing technique was discussed. The micelle morphologhy was observed by TEM. It was found that well core-shell MePEG1900/Polyester 2162 copolymer nanoparticles can be formed by self-assemble in acetone solution. In addition, the size of nanospheres measured using dynamic light scattering exhibited a narrow monodisphere size distribution and an average diameter in the ranger of less than 200nm.

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