Self-associations and temperature dependence of aqueous solutions of zwitterionically modified N-isopropylacrylamide copolymers
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| 008 | 210128e20150601xx s 000 0 eng | ||
| 024 | 7 | 0 | |a 10.1007/s00397-015-0837-z |2 doi |
| 035 | |a (NATIONALLICENCE)springer-10.1007/s00397-015-0837-z | ||
| 245 | 0 | 0 | |a Self-associations and temperature dependence of aqueous solutions of zwitterionically modified N-isopropylacrylamide copolymers |h [Elektronische Daten] |c [Saud Hashmi, Mohammad Vatankhah-Varnoosfaderani, Amin GhavamiNejad, Francis Obiweluozor, Bing Du, Florian Stadler] |
| 520 | 3 | |a Thermosensitive copolymer solutions are prepared from various molar ratios of N-isopropylacrylamide (NIPAM) and the zwitterionic monomer N-(methacryloxypropyl)-N,N-dimethyl-N-(3-sulfopropyl) ammonium betaine (Zw) by free radical polymerization. In the current study, we examined the rheological properties of poly (NIPAM/sulfobetaine) copolymer solutions. We found that the rheological properties are conceptually linked with the copolymer chemical structure and chain topology. We also report the effects of bulk molar mass and zwitterions on flow curve ɳ ( γ ⋅ $$ \overset{\cdot }{\upgamma} $$ ). With the introduction of the charged group in the PNIPAM-chain, its viscoelastic phase behavior and lower critical solution temperature (LCST) are affected. At varying concentrations of zwitterionic copolymer, they showed a shear thinning behavior with two relaxation regimes for entanglement relaxation and zwitterionic interaction. Interestingly, the zwitterionic interactions are related to the molar concentration of zwitterionic monomer. This is eventually associated with the topology of the copolymer chain. Our results also showed that there was a linear increase in the LCST of these solutions as a function of zwitterionic moieties. | |
| 540 | |a Springer-Verlag Berlin Heidelberg, 2015 | ||
| 690 | 7 | |a Self-association |2 nationallicence | |
| 690 | 7 | |a Zwitterion |2 nationallicence | |
| 690 | 7 | |a Upper and lower critical solution temperature |2 nationallicence | |
| 690 | 7 | |a Double relaxation (entanglements ionic interactions) |2 nationallicence | |
| 690 | 7 | |a Polymer solution |2 nationallicence | |
| 700 | 1 | |a Hashmi |D Saud |u College of Materials Science and Engineering, Shenzhen University, 518060, Shenzhen, People's Republic of China |4 aut | |
| 700 | 1 | |a Vatankhah-Varnoosfaderani |D Mohammad |u Department of Polymer, Omidiyeh Branch, Islamic Azad University, 63731-93719, Omidiyeh, Iran |4 aut | |
| 700 | 1 | |a GhavamiNejad |D Amin |u College of Materials Science and Engineering, Shenzhen University, 518060, Shenzhen, People's Republic of China |4 aut | |
| 700 | 1 | |a Obiweluozor |D Francis |u School of Semiconductor and Chemical Engineering, Chonbuk National University, Baekjero 567, Deokjin-gu, 561-756, Jeonju, Jeonbuk, Republic of Korea |4 aut | |
| 700 | 1 | |a Du |D Bing |u College of Materials Science and Engineering, Shenzhen University, 518060, Shenzhen, People's Republic of China |4 aut | |
| 700 | 1 | |a Stadler |D Florian |u College of Materials Science and Engineering, Shenzhen University, 518060, Shenzhen, People's Republic of China |4 aut | |
| 773 | 0 | |t Rheologica Acta |d Springer Berlin Heidelberg |g 54/6(2015-06-01), 501-516 |x 0035-4511 |q 54:6<501 |1 2015 |2 54 |o 397 | |
| 856 | 4 | 0 | |u https://doi.org/10.1007/s00397-015-0837-z |q text/html |z Onlinezugriff via DOI |
| 898 | |a BK010053 |b XK010053 |c XK010000 | ||
| 900 | 7 | |a Metadata rights reserved |b Springer special CC-BY-NC licence |2 nationallicence | |
| 908 | |D 1 |a research-article |2 jats | ||
| 949 | |B NATIONALLICENCE |F NATIONALLICENCE |b NL-springer | ||
| 950 | |B NATIONALLICENCE |P 856 |E 40 |u https://doi.org/10.1007/s00397-015-0837-z |q text/html |z Onlinezugriff via DOI | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Hashmi |D Saud |u College of Materials Science and Engineering, Shenzhen University, 518060, Shenzhen, People's Republic of China |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Vatankhah-Varnoosfaderani |D Mohammad |u Department of Polymer, Omidiyeh Branch, Islamic Azad University, 63731-93719, Omidiyeh, Iran |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a GhavamiNejad |D Amin |u College of Materials Science and Engineering, Shenzhen University, 518060, Shenzhen, People's Republic of China |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Obiweluozor |D Francis |u School of Semiconductor and Chemical Engineering, Chonbuk National University, Baekjero 567, Deokjin-gu, 561-756, Jeonju, Jeonbuk, Republic of Korea |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Du |D Bing |u College of Materials Science and Engineering, Shenzhen University, 518060, Shenzhen, People's Republic of China |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Stadler |D Florian |u College of Materials Science and Engineering, Shenzhen University, 518060, Shenzhen, People's Republic of China |4 aut | ||
| 950 | |B NATIONALLICENCE |P 773 |E 0- |t Rheologica Acta |d Springer Berlin Heidelberg |g 54/6(2015-06-01), 501-516 |x 0035-4511 |q 54:6<501 |1 2015 |2 54 |o 397 | ||