Feifei Ng

ORCID: 0000-0002-0520-952X
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About
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Research Areas
  • Conducting polymers and applications
  • Fuel Cells and Related Materials
  • biodegradable polymer synthesis and properties
  • Synthesis and properties of polymers
  • Advanced Polymer Synthesis and Characterization
  • Polymer Nanocomposites and Properties
  • Advanced Drug Delivery Systems
  • S100 Proteins and Annexins
  • Membrane-based Ion Separation Techniques
  • Drug Solubulity and Delivery Systems
  • Lignin and Wood Chemistry
  • Ionic liquids properties and applications
  • Antibiotics Pharmacokinetics and Efficacy
  • Electrocatalysts for Energy Conversion
  • Polymer composites and self-healing
  • Chemical Synthesis and Analysis
  • Organic Light-Emitting Diodes Research
  • Carbon dioxide utilization in catalysis
  • Advanced Battery Materials and Technologies
  • Orthopaedic implants and arthroplasty
  • Medical Imaging Techniques and Applications
  • Polymer Science and PVC
  • Inorganic and Organometallic Chemistry
  • Organic Electronics and Photovoltaics
  • Advanced battery technologies research

MedinCell (France)
2021-2024

Institut Charles Gerhardt Montpellier
2008-2017

Université de Montpellier
2009-2017

Centre National de la Recherche Scientifique
2010-2017

Institut de Chimie
2008-2017

École Nationale Supérieure de Chimie de Montpellier
2017

Laboratoire de Chimie des Polymères Organiques
2015

Université de Bordeaux
2015

Institut Polytechnique de Bordeaux
2015

University of Yamanashi
2011

Abstract Six series of novel highly sulfonated polybenzimidazoles (sPBIs) with high molecular weight were prepared by direct polycondensation between 3,3′‐diaminobenzidine and original multisulfonated dinuclear dicarboxylic acids containing bridging ether, sulfone, hexafluoroisopropylidene moieties. All reactions carried out in polyphosphoric acid, which acts as both solvent catalyst. The degree sulfonation was modulated the final products varying proportion to nonsulfonated used synthesis....

10.1002/pola.24630 article EN Journal of Polymer Science Part A Polymer Chemistry 2011-03-22

This paper presents the in vitro and vivo degradation of BEPO, a marketed situ forming depot technology used for formulation long-acting injectables. BEPO is composed solution blend poly(ethylene glycol)-block-poly(lactic acid) (PEG–PLA) triblock diblock an organic solvent, where therapeutic agent may be dissolved or suspended. Upon contact with aqueous environment, solvent diffuses polymers precipitate, entrapping drug reservoir. Two representative compositions were subjected to 3-month...

10.1021/acsami.2c13141 article EN cc-by-nc-nd ACS Applied Materials & Interfaces 2023-11-27

Novel ionomers based on polybenzimidazole block sulfonated poly(arylene ether sulfone) show excellent thermal properties. The ionic aggregation of sulfonic acid groups leads to well-developed phase separated morphology and thus high proton conductivity at wide humidity range, up 65 mS cm(-1) 90% relative humidity.

10.1039/c1cc12266e article EN Chemical Communications 2011-01-01

ABSTRACT A series of four π‐conjugated carbazole‐ alt ‐benzothiadiazole copolymers (PCBT) were prepared by Suzuki cross‐coupling reaction between synthesized dibromocarbazoles as electron‐rich subunits and 4,7‐bis(4,4,5,5‐tetramethyl‐1,3,2‐dioxaborolan‐2‐yl)−2,1,3‐benzothiadiazole electron‐deficient subunits. The directly linked through 2,7‐ or 3,6‐ positions the carbazole. In addition, carbazole monomers have been N ‐substituted a branched linear side‐chain. chemical structure their...

10.1002/pola.27660 article EN Journal of Polymer Science Part A Polymer Chemistry 2015-04-18

A novel sulfonated polybenzimidazole has been prepared by solution copolycondensation of diaminobenzidine, 5-sulfobenzene-1,3-dicarboxylic acid and 4,4'-(hexafluoropropylidene) bis(benzoic acid) in various stoichiometric ratios using polyphosphoric as solvent. The resulting polymers, characterized 1H NMR spectroscopy, are soluble polar aprotic solvents show excellent film-forming characteristics. Mechanically tough flexible films casting. properties the polymer membranes have a function...

10.1149/1.2981982 article EN ECS Transactions 2008-10-03

A novel type of polybenzimidazole containing cross-linkable phthalidene groups has been functionalized by direct sulfonation for use as a fuel cell membrane via electrophilic substitution using both concentrated and fuming sulfuric acid. This ether-linked presents different types site substitution. broad study the influence reaction conditions shows that degree have clear dependence on nature sulfonating agent, with less activated sites being sulfonated even short times oleum. The identified...

10.1149/1.3210647 article EN ECS Transactions 2009-09-25

Copolymers of poly(lactic acid) (PLA) and poly(ethylene glycol) (PEG) are widely used in biomedical applications. As inactive ingredients formulations, tracking their degradation byproducts vivo stands as a major challenge but is pivotal endeavor to ensure safety further progress clinical stages. Current bioanalytical methods monitor this lack sensitivity quantification precision. This study introduces cost-effective synthetic route for 13C-labeled PEG–PLA copolymers, combined with...

10.1021/acs.biomac.4c01169 article EN Biomacromolecules 2024-10-23

This article presents the evaluation of diblock and triblock poly(ethylene glycol)-b-poly(1,3-trimethylene carbonate) amphiphilic copolymers (PEG-PTMCs) as excipients for formulation long-acting injectables (LAIs). Copolymers were successfully synthesised through bulk ring-opening polymerisation. The concomitant formation PTMC homopolymer could not be avoided irrespective catalyst amount, but by-product easily removed by gel chromatography. Pure PEG-PTMCs undergo faster erosion in vivo than...

10.3390/molecules26051438 article EN cc-by Molecules 2021-03-06

This article describes the utilization of (methoxy)poly(ethylene glycol)-b-poly(1,3-trimethylene carbonate) ((m)PEG–PTMC) diblock and triblock copolymers for formulation in situ forming depot long-acting injectables by solvent exchange. The results shown this manuscript demonstrate that it is possible to achieve long-term drug deliveries from suspension formulations prepared with these copolymers, release durations up several months vitro. different PEG PTMC molecular weights affords...

10.3390/pharmaceutics13050605 article EN cc-by Pharmaceutics 2021-04-22

Abstract not Available.

10.1149/ma2009-02/10/966 article EN Meeting abstracts/Meeting abstracts (Electrochemical Society. CD-ROM) 2009-07-10

Abstract not Available.

10.1149/ma2008-02/11/1005 article EN Meeting abstracts/Meeting abstracts (Electrochemical Society. CD-ROM) 2008-08-29
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