%0 Journal Article
%T Thermo- and pH-sensitive aggregation behavior of PDEAm-b-P(L-lysine) double hydrophilic block copolymers in aqueous solution
%+ Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM)
%+ Laboratoire Charles Coulomb (L2C)
%A Xuewei, Zhang
%A Monge, Sophie
%A In, Martin
%A Giani, Olivia
%A Robin, Jean-Jacques
%< avec comité de lecture
%@ 1744-683X
%J Soft Matter
%I Royal Society of Chemistry
%V 9
%P 1301-1309
%8 2013-01-01
%D 2013
%R 10.1039/c2sm27051j
%Z Chemical Sciences/PolymersJournal articles
%X The synthesis and the aggregation behavior of novel well-defined poly(N,N-diethylacrylamide)-b-poly- (L-lysine) (PDEAm-b-PLL) double hydrophilic block copolymers are reported. PDEAm-b-PLL was prepared using an original strategy which consisted of the ring opening polymerization (ROP) of N3- trifluoroacetyl-L-lysine N-carboxyanhydride using terminated-thiol PDEAm as a macroinitiator. After deprotection of the amine group of the L-lysine, pH- and thermo-sensitive poly(N,N-diethylacrylamide)- b-poly(L-lysine) block copolymers were obtained. The structure of the copolymers was characterized by 1H NMR and FT-IR. Then, pH and temperature sensitivities were measured by 1H NMR and UV/Vis spectroscopy. At different pH values and temperatures, poly(L-lysine) and poly(N,N-diethylacrylamide) showed typical behaviors, which led to different types of aggregation in aqueous solution. The influence of both stimuli was carefully investigated by DLS, TEM, and SANS.
%G English
%L hal-00769822
%U https://hal.science/hal-00769822
%~ CNRS
%~ UNIV-MONTP1
%~ UNIV-MONTP2
%~ ENSC-MONTPELLIER
%~ ICG
%~ L2C
%~ INC-CNRS
%~ MIPS
%~ CHIMIE
%~ UNIV-MONTPELLIER
%~ UM1-UM2
%~ UM-2015-2021