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Synthesis and Characterization of Biodegradable Amphiphilic Triblock Copolymers Containing L-Glutamic Acid Units
[Abstract]: A novel biodegradable amphiphilic triblock copolymer bearing pendant carboxyl groups PLGG-PEG-PLGG was successfully prepared by ring-opening copolymerization of l-lactide (LA) with (3s)-benzoxylcarbonylethyl-morpholine-2, 5-dione (BEMD) in the presence of dihydroxyl poly(ethylene glycol) (PEG) as a macroinitiator in bulk at 130 degrees C using SnOct(2) as catalyst and by subsequ...
http://www.polymer.cn//ss/pbzhang/publicationsshow_7395.html |
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Effect of a Lewis Acid Catalyst on the Performance of HDPE/BFR/GNPs Composites
Brominated flame-retarded high-density polyethylene (HDPE) composites containing graphene nanoplatelets (GNPs) were prepared via melt blending. A Lewis acid catalyst, aluminium chloride (AlCl3), was adopted to initiate the Friedel-Crafts reaction, which contributed to the good dispersion of GNPs and improvement of interfacial interaction. Scanning electron microscopy (SEM) showed that the size of ...
http://www.polymer.cn//ss/zpfang/publicationsshow_7238.html |
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Effect of fiber surface-treatments on the properties of poly(lactic acid)/ramie composites
Ramie fiber reinforced poly(lactic acid) (PLA) composites were prepared by a two-roll mill. Ramie was treated by alkali and silane (3-aminopropyltriethoxy silane and c-glycidoxypropyltrimethoxy silane). Effect of surface treatment on the properties of the composites was studied. The tensile, flexural and impact strength of the composites have a significant improvement. Dynamic mechanical analysis ...
http://www.polymer.cn//ss/taoyu/publicationsshow_7208.html |
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25. Influence of pH on fumaric acid adsorption by basic ion-exchange resins
Yong-Qian Fu, Huayue
Zhu, Ru Jiang, Long-Fei Yin, Qi-Cheng Ruan, Shi-Bin Ren.
Influence of pH on fumaric acid adsorption by basic ion-exchange resins. Asian Journal of
Chemistry, 2013, 25(7)3749-3754
http://www.polymer.cn//ss/zhuhuayue/publicationsshow_6840.html |
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Aggregation behavior of polystyrene-b-poly(acrylic acid) at the air–water interface?
The aggregation behavior of amphiphilic
block copolymer polystyrene-b-poly(acrylic acid) (PS-b-PAA) at the air–water
interface was investigated through surface pressure measurements (isotherms, compression–expansion
hysteresis and compression relaxation experiments), Brewster Angle Microscopy (BAM)
imaging and Atomic Force Microscopy (AFM) imaging. It is found that PS-b-PAA
(Mn=11490 gmol-1,
P...
http://www.polymer.cn//ss/maxiaoyan/publicationsshow_6735.html |
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A Morphology Study of Poly(divinylbenzene-co-acrylic acid) in Precipitation Polymerization
Divinylbenzene-80 (DVB-80) and polar monomer acrylic acid (AA) having hydrogen bonding at a total monomer loading of 5 vol% were precipitated-copolymerized in a variety of organic solvents with 2,2′-azobis(isobutyronitrile) (AIBN) as initiator. The experiments were investigated from a two-dimensional matrix, i.e., the actual crosslinking degree of DVB varying from 0 to 80% and the solvent composi...
http://www.polymer.cn//ss/yangxinlin/publicationsshow_6587.html |
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Preparation of Monodisperse Poly(methacrylic acid) Microspheres by Distillation Precipitation Polymerization
Monodisperse poly(methacrylic acid) (PMAA) microspheres were prepared by distillation–precipitation polymerization in acetonitrile with 2,20-azobisisobutyronitrile (AIBN) as initiator. The polymeric microspheres were formed simultaneously via a precipitation polymerization manner during the distillation of the solvent out of the reaction system in the absence of any surfactant and crosslinker. ...
http://www.polymer.cn//ss/yangxinlin/publicationsshow_6558.html |
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Preparation of polystyrene microspheres using rosin-acrylic acid diester as crosslinking agent
Reacting
acrylic rosin with 2-hydroxyethyl methacrylate (HEMA) produced an ester (RAH) with double bonds that
was used as a crosslinking monomer for preparation of polystyrene microspheres
via suspension polymerization, replacing the traditional monomer divinyl
benzene. The effects of monomer weight ratio, reaction
temperature, gelatin level, and stirring speed on the polymer microspheres were
inv...
http://www.polymer.cn//ss/zhangfaai/publicationsshow_6384.html |
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Promoting antitumor activities of hydroxycamptothecin by encapsulation into acid-labile nanoparticles using electrospraying.
X.M.
Luo, G.Q. Jia, H.X. Song, C.Y. Liu, G.N. Wu, X.H. Li*. Promoting
antitumor activities of hydroxycamptothecin by encapsulation into acid-labile nanoparticles
using electrospraying. Pharm. Res., 31: 46–59 (2014).
http://link.springer.com/article/10.1007/s11095-013-1130-4
http://www.polymer.cn//ss/xiaohongli/publicationsshow_6289.html |
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Polymeric Micelles with π-π Conjugated Cinnamic Acid as Lipophilic Moieties for Doxorubicin Delivery
In this paper, p–p conjugated cinnamic acid (CIN) was used as a lipophilic moiety to fabricate polymeric micelles. The amphiphiles with one or two cinnamic acid molecules as lipophilic architectures (mPEG–CIN and mPEG–Lys–DCIN) were synthesized. We expressly investigated the effect of the lipophilic parts on size, morphology and stability of the self-assembly micelles. Anticancer drug doxorubi...
http://www.polymer.cn//ss/hebin/publicationsshow_5952.html |
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