Meet Inspiring Speakers and Experts at our 3000+ Global Conference Series Events with over 1000+ Conferences, 1000+ Symposiums
and 1000+ Workshops on Medical, Pharma, Engineering, Science, Technology and Business.

Explore and learn more about Conference Series : World's leading Event Organizer

Back

Anne Jonquieres

Anne Jonquieres

University of Lorraine, France

Title: Pseudopeptide-polymer bioconjugates as additives for CO2 separation membranes

Biography

Biography: Anne Jonquieres

Abstract

Carbone dioxide is one of the main greenhouse gases having serious detrimental effects on climate and health.1 During the last COP21 meeting in Paris, the yearly costs related to the CO2

In this work, pseudopeptide-polymer bioconjugates were synthesized in a controlled way by a "grafting-to" strategy based on CuAAC "click" chemistry of alkyne-modified pseudopeptides with an azido-functionalized PEO-based oligomer obtained by controlled radical polymerization (SET-LRP). Peptide-polymer conjugates are brand new structures, which are currently being investigated in various fields;3 but, to the best of our knowledge, they have never been used as additives to membranes and their potential impact on molecular separation has never been investigated.

These bioconjugates were assessed as original additives in a reference Pebax™ polymer membrane for CO2 capture. Pebax™ is a PolyEther Block Amide thermoplastic elastomer provided by the chemical company Arkema and already well known for its good performance for CO2 separation for two important gas mixtures (CO2/N2 and CO2/CH4).4-6 The first separation relates to the major industrial challenge of CO2 capture from combustion processes. The latter separation refers to the treatment of natural gas, which is another important issue for energy production.

An analysis of the sorption and permeation results according to the solution-diffusion model revealed the key features of the new additives for improving membrane performances for these challenging CO2 separations. Compared to pseudopeptides, the pseudopeptide-polymer bioconjugates greatly improved membrane permeability (×1.6) with a good constant selectivity for CO2 capture.

Image

Figure 1: Strong improvement of the membrane properties by pseudopeptide-polymer bioconjugates for CO2 capture

Publications

  1. US Department of Commerce (2016) Trends in Carbon Dioxide http://www.esrl.noaa.gov/gmd/ccgg/trends/ (accessed 2/12/, 2016).
  2. United Nations, Framework Convention on Climate Change (2015) COP21 Report.
  3. Shu JY, Panganiban B, Xu T, Annu Rev Phys Chem (2013) 64:631-657.
  4. Liu SL, Shao L, Chua ML, Lau CH, Wang H and Quan S (2013) Prog Polym Sci 38:1089–1120.
  5. Bondar VI, Freeman BD and Pinnau I (2000) J Polym Sci Part B Polym Phys 38:2051–2062.
  6. Rabiee H, Meshkat Alsadat S, Soltanieh M, Mousavi SA and Ghadimi A (2015) J Ind Eng Chem 27:223–239.
  7. Solimando X, Lherbier C, Babin J, Arnal-Herault C, Romero E, Acherar S, Jamart-Gregoire B, Barth D, Roizard D, Jonquieres A (2016) Polymer International 65:1464-1473. (This work)