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URL:https://murmitoyen.com/events/vanille/udem/detail/862463-conference-de-
 chimie-avec-le-professeur-mark-maclachlan
LOCATION:  Pavillon J.- Armand-Bombardier\, 5155 avenue Decelles  amphithé
 âtre – 1035\, H3T 2B1\, Montréal
SUMMARY:Conférence de chimie avec le Professeur Mark MacLachlan
DESCRIPTION:Titre:  New Materials Chemistry from Cellulose Nanocrystals
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\nEndroit: Pavillion P. J. Bombardier\, salle 1035
\n 
\nHôte: Wust J
 ames D.
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\nRésumé:  Cellulose nanocrystals (CNCs) extracted from bi
 omass\, including cotton and wood pulp\, form stable colloidal suspensions
  in water and also organize into a chiral nematic liquid crystal when conc
 entrated in water. This chiral nematic organization is retainedin dried fi
 lms of CNCs\, giving films with bright\, iridescent colors.[1]Our group ha
 s been active in using CNCs as a template to construct novel chiral nemati
 c mesoporous materials with photonic properties.[2] We have succeeded in p
 reparing silica\,[3]organosilica\,[4] and polymeric materials[5] through s
 elf-assembly or templating methods.In this presentation\, I will discuss o
 ur some of our recent explorations with CNCs\, including hydrogels (Fig. 1
 ) and aerogels\,[6] tactoids\,[7\,8]or elastomers with tunable optical pro
 perties.
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\n1]Revol\, J.-F.\; Godbout\, L.\; Gray\, D. G. J.
  Pulp Pap. Sci. 1998\, 24\, 146-149.[2]Giese\, M.\; Blusch\, L. K.\; Khan\
 , M. K.\; MacLachlan\, M. J. Angew. Chem. Int. Ed.2015\, 54\, 2888-2910.[3
 ]Shopsowitz\, K. E.\; Qi\, H.\; Hamad\, W. Y.\; MacLachlan\, M.J. Nature20
 10\, 468\, 422-425.[4]Shopsowitz\, K.E.\; Hamad\, W.Y.\; MacLachlan\, M.J.
  J. Am. Chem. Soc.2012\, 134\, 867-870.[5]Khan\, M. K.\; Bsoul\, A.\; Walu
 s\, K.\; Hamad\, W. Y.\; MacLachlan\, M. J. Angew.Chem. Int. Ed.2015\, 54\
 , 4304-4308.[6]Oechsle\, A. L.\; Lewis\, L.\; Hamad\, W. Y.\; Hatzikiriako
 s\, S. G.\; MacLachlan\, M. J.Chem. Mater.2018\, 30\, 376-385.[7] Wang\, P
 .-X.\, Hamad\, W. Y.\; MacLachlan\, M. J. Angew. Chem. Int. Ed.2018\, 130\
 , 3418-3423.[8]Wang\, P.-X.\; Hamad\, W. Y.\; MacLachlan\, M. J. Chem2019\
 , 5\, 681–692.
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