TY - JOUR
T1 - Synthesis and solution property of acrylamide-sulfobetaine copolymers
AU - Ye, Tao
AU - Song, Yihu
AU - Zheng, Qiang
N1 - Publisher Copyright:
© 2014, Springer-Verlag Berlin Heidelberg.
PY - 2015/2/27
Y1 - 2015/2/27
N2 - Sulfobetaine 3-[N,N-dimethyl-N-(2-methacryloxylethyl)ammonio]-propane sulfonate (DMAPS) was used to copolymerize with acrylamide (AM) to prepare salt-sensitive copolymers. The optimal reaction conditions, such as initiator concentration, temperature, and reaction time, to achieve the largest weight averaged molecular weight (Mw) and the lowest polydispersity index (PDI) were studied. The reactivity ratios of AM and DMAPS (r1, r2) were calculated to be (0.45, 0.84) by the Fineman-Ross method, and (0.47, 0.91) by the Kelen-Tüdös method. The Q-e values of DMAPS were calculated to be (0.30, −0.38). DMAPS was found to be more easily to add into the copolymer than AM to form random copolymers with a slight alternating tendency. Solution rheology and molecular size of the copolymers as a function of Mw were studied in 1 M NaCl solution, a near θ-solution, by rotational rheometer and light scattering methods, respectively. Undisturbed dimension of the copolymers was evaluated according to Stockmayer-Fixman relation.
AB - Sulfobetaine 3-[N,N-dimethyl-N-(2-methacryloxylethyl)ammonio]-propane sulfonate (DMAPS) was used to copolymerize with acrylamide (AM) to prepare salt-sensitive copolymers. The optimal reaction conditions, such as initiator concentration, temperature, and reaction time, to achieve the largest weight averaged molecular weight (Mw) and the lowest polydispersity index (PDI) were studied. The reactivity ratios of AM and DMAPS (r1, r2) were calculated to be (0.45, 0.84) by the Fineman-Ross method, and (0.47, 0.91) by the Kelen-Tüdös method. The Q-e values of DMAPS were calculated to be (0.30, −0.38). DMAPS was found to be more easily to add into the copolymer than AM to form random copolymers with a slight alternating tendency. Solution rheology and molecular size of the copolymers as a function of Mw were studied in 1 M NaCl solution, a near θ-solution, by rotational rheometer and light scattering methods, respectively. Undisturbed dimension of the copolymers was evaluated according to Stockmayer-Fixman relation.
KW - Conformational analysis
KW - Copolymerization
KW - Reactivity ratio
KW - Rheology
KW - Undisturbed dimension
UR - https://www.scopus.com/pages/publications/84925496955
U2 - 10.1007/s00396-014-3467-6
DO - 10.1007/s00396-014-3467-6
M3 - 文章
AN - SCOPUS:84925496955
SN - 0303-402X
VL - 293
SP - 797
EP - 807
JO - Colloid and Polymer Science
JF - Colloid and Polymer Science
IS - 3
ER -