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Facile synthesis of photolabile dendritic-unit-bridged hyperbranched graft copolymers for stimuli-triggered topological transition and controlled release of Nile red
Different from hyperbranched star-like polymers
and dendritic brushes, dendritic-unit-bridged hyperbranched graft copolymers
(DHGCs) with branching point linked branches and linear grafts can be regarded
as a new subclass of hyperbranched-graft-linear copolymers. This study aims at the
synthesis and properties of photocleavable DHGCs comprising oligomeric branches
composed of poly(ethylene glyco...
http://www.polymer.cn//ss/zhaoyouliang/publicationsshow_8360.html |
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[J. Mater. Chem. B] Thermo and pH dual-controlled charge reversal amphiphilic graft copolymer micelles for overcoming drug resistance in cancer cells
Currently, multidrug resistance (MDR) is the major challenge of nanotechnology in cancer treatment. In this study, a series of amphiphilic poly(styrene-co-maleic anhydride)-graft-poly(2-(N,N-dimethylamino)ethyl methacrylate) graft copolymer [PSMA89-g-P(DMA16-co-SD)] micelles were prepared. PSMA89-g-P(DMA16-co-SD) graft copolymers were first synthesized by grafting different amounts ...
http://www.polymer.cn//ss/tianwei/publicationsshow_8335.html |
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Dynamic Origin and Thermally Induced Evolution of New Self-Assembled Aggregates from an Amphiphilic Comb-Like Graft Copolymer: A Multiscale and Multimorphological Procedure
New aggregates with a snowflake-like superstructure are prepared by facile and low-cost water-phase self-assembly of an amphiphilic comb-like graft copolymer, and their origin involving dynamic disorder–order structural evolution from nano- to microscale is revealed (see figure). Furthermore, aggregates perform a unique thermally induced multimorphological change leading to cluster-like nanostruc...
http://www.polymer.cn//ss/wugang/publicationsshow_7834.html |
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In vitro degradation of biodegradable blending materials based on poly(p-dioxanone) and poly(vinyl alcohol)-graft-poly(p-dioxanone) with high molecular weights
Amphiphilic biodegradable graft copolymer, poly(vinyl alcohol)-graft-poly(p-dioxanone) (PVA-g-PPDO), was used to prepare a new biodegradable material by blending with poly(p-dioxanone) (PPDO). The in vitro degradation properties of the copolymer and blends with different contents of PVA-g-PPDO were studied in phosphate buffer at 37 degrees C. The degradation processes of the PVA-g-PPDO and its ble...
http://www.polymer.cn//ss/wugang/publicationsshow_7827.html |
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【Colloids & Surface B】Surface modification of poly(styrene-b-(ethylene-co-butylene)-b-styrene) elastomer via UV-induced graft polymerization of N-vinyl pyrrolidone
Abstract:
Poly(N-vinyl pyrrolidone) (PNVP) was covalently grafted onto the surface of biomedical poly(styrene-b-(ethylene-co-butylene)-b-styrene) (SEBS) elastomer via a technique of UV-induced graft polymerization combined with plasma pre-treatment. The surface graft polymerization of N-vinyl pyrrolidone (NVP) was confirmed by ATR-FTIR and XPS. Effect of the parameters of graft poly...
http://www.polymer.cn//ss/luanshifang/publicationsshow_6669.html |
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Cellulose-Based Dual Graft Molecular Brushes as Potential Drug Nanocarriers: Stimulus Responsive Micelles, Self-Assembled Phase Transition Behavior, and Tunable Crystalline Morphologies.
Well-defined cellulose-based dual graft molecular brushes, composed of ethyl cellulose-graft-poly(N,Ndimethylaminoethyl methacrylate)-graft-poly(ε-caprolactone) (EC-g-PDMAEMA-g-PCL), have been prepared by ring-opening polymerization (ROP) and atom transfer radical polymerization (ATRP). Unlike other brush copolymers, the new molecular brushes show some unique physicochemical properties and...
http://www.polymer.cn//ss/yuanjinying/publicationsshow_3355.html |
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Synthesis, Characterization and in Vitro Degradation of Ethyl Cellulose-graft-Poly (ε-caprolactone)-Block-Poly (L-Lactide) Copolymers by Sequential Ring-Opening Polymerization
Well-defined ethyl cellulose-graft-poly(-caprolactone) (EC-g-PCL) graft copolymers were successfully synthesized via ring-opening polymerization (ROP) of -caprolactone (CL) with an ethyl cellulose (EC) initiator and a tin 2-ethylhexanoate (Sn(Oct)2) catalyst in xylene at 120 °C. Then, novel ethyl cellulose-graft-poly(-caprolactone)- block-poly(L-lactide) (EC-g-PCL-b-PLLA) graft-block copoly...
http://www.polymer.cn//ss/yuanjinying/publicationsshow_3335.html |
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Syntheses, Characterization, and in Vitro Degradation of Ethyl Cellulose-graft-poly(E-caprolactone)-block-poly(L-lactide) Copolymers by Sequential Ring-Opening Polymerization
Well-defined ethyl cellulose-graft-poly(-caprolactone) (EC-g-PCL) graft copolymers were successfully synthesized via ring-opening polymerization (ROP) of -caprolactone (CL) with an ethyl cellulose (EC) initiator and a tin
2-ethylhexanoate (Sn(Oct)2) catalyst in xylene at 120 °C. Then, novel ethyl cellulose-graft-poly(-caprolactone)-block-poly(L-lactide) (EC-g-PCL-b-PLLA) graft-block copoly...
http://www.polymer.cn//ss/yuanweizhong/publicationsshow_2308.html |
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Synthesis and properties of Polycaprolactone-graft-Poly(2-(dimethylamino)ethyl methacrylate-co-methoxy polyethylene glycol monomethacrylate) as non-viral gene vector
Polycaprolactone-graft-Poly(2-(dimethylamino)ethyl methacrylate-co-methoxy polyethylene glycol monomethacrylate)
(PCL-graft-P(DMAEMA-co-mPEGMMA)) was synthesized by combination of ring-opening polymerization (ROP)
and atom transfer radical polymerization (ATRP). PCL-graft-P(DMAEMA-co-mPEGMMA) was characterized by FTIR, 1H
NMR, and GPC. PCL-graft-P(DMAEMA-co-mPEGMMA) with expected composition an...
http://www.polymer.cn//ss/xingjinfeng/publicationsshow_2236.html |
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Amphiphilic poly{[α-maleic anhydride-ω-methoxy-poly(ethylene glycol)]-co-(ethyl cyanoacrylate)} graft copolymer nanoparticles as carriers for transdermal drug delivery
In this study, the transdermal drug delivery properties of D,L-tetrahydropalmatine (THP)-loaded amphiphilic poly{[α-maleic anhydride-ω-methoxy-poly(ethylene glycol)]-co-(ethyl cyanoacrylate)} (PEGECA) graft copolymer nanoparticles (PEGECAT NPs) were evaluated by skin penetration experiments in vitro. The transdermal permeation experiments in vitro were carried out in franz diffusion ce...
http://www.polymer.cn//ss/xingjinfeng/publicationsshow_1840.html |
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