Results 201 to 210 of about 15,082 (236)

Multi-responsive PNIPAM–PEGDA hydrogel composite

Soft Matter, 2021
PNIPAM–PEGDA hydrogels in response to temperature, solvent and magnetic fields.
Liqian Wang, Fengrui Liu, Jin Qian, Ziliang Wu, Rui Xiao   +4 more
openaire   +2 more sources

Solution behaviors and microstructures of PNIPAm-P123-PNIPAm pentablock terpolymers in dilute and concentrated aqueous solutions

Physical Chemistry Chemical Physics, 2013
The solution behaviors and microstructures of poly(N-isopropylacrylamide)x-poly(ethylene oxide)20-poly(propylene oxide)70-poly(ethylene oxide)20-poly(N-isopropylacrylamide)x (PNIPAmx-PEO20-PPO70-PEO20-PNIPAmx or PNIPAmx-P123-PNIPAmx) pentablock terpolymers with various PNIPAm block lengths in dilute and concentrated aqueous solutions were investigated ...
Yanping, Lu, Tongquan, Chen, Aixiong, Mei, Tianyou, Chen, Yanwei, Ding, Xinghong, Zhang, Junting, Xu, Zhiqiang, Fan, Binyang, Du   +8 more
openaire   +2 more sources

Colloidal Phase Separation of Concentrated PNIPAm Solutions

Langmuir, 2007
In the concentration range of 1-6 wt %, solutions of a thermosensitive polymer (poly-N-isopropylacrylamide (PNIPAm), Mw = 1.4 x 10(5) g.mol(-1)) are shown to phase separate in the form of dense stable colloids of nearly pure polymer. Diffuse wave spectroscopy and small-angle neutron scattering both provide consistent measurements of the colloidal size ...
Balu, C., Delsanti, M., Guenoun, Pierre, Monti, Fabrice, Cloitre, Michel   +4 more
openaire   +3 more sources

Preparation of thermosensitive PNIPAM microcontainers and a versatile method to fabricate PNIPAM shell on particles with silica surface

Colloid and Polymer Science, 2012
Thermosensitive PNIPAM microcontainers were prepared by using silica particles as template. Silica particles were prepared by the Stober method and surface modified with linear P(NIPAM-co-MPS) chains. PNIPAM shell was then fabricated on the P(NIPAM-co-MPS)-modified silica particles through precipitation polymerization of NIPAM and MBA.
Feng Zhang, Guihua Hou, Shaojun Dai, Rong Lu, Changchun Wang   +4 more
openaire   +1 more source

Mechanical properties of PNIPAM based hydrogels: A review

Materials Science and Engineering: C, 2017
Materials which adjust their properties in response to environmental factors such as temperature, pH and ionic strength are rapidly evolving and known as smart materials. Hydrogels formed by smart polymers have various applications. Among the smart polymers, thermoresponsive polymer poly(N-isopropylacrylamide)(PNIPAM) is very important because of its ...
Muhammad Abdul, Haq, Yunlan, Su, Dujin, Wang   +2 more
openaire   +2 more sources

PNIPAM microgels in external fields

2018
Thermoresponsible Mikrogele aus Poly(N-isopropylacrylamid) (PNIPAM) quellen in Wasser, aber schrumpfen oberhalb ihrer Volumenphasenübergangstemperatur (VPTT). Außerdem schrumpfen sie in Mischungen aus Wasser und Ethanol, obwohl beide einzeln gute Lösungsmittel sind. Dies wird als cononsolvency bezeichnet.
openaire   +3 more sources

PNIPAm-PEO-PPO-PEO-PNIPAm Pentablock Terpolymer: Synthesis and Chain Behavior in Aqueous Solution

Macromolecules, 2010
The double thermosensitive and narrow dispersed PNIPAm110-PEO100-PPO65-PEO100-PNIPAm110 pentablock terpolymer was synthesized by the typical atomic transfer radical polymerization (ATRP) method with N-isopropylacrylamide (NIPAm) as the monomer and modified poly(ethylene oxide)100−poly(propylene oxide)65−poly(ethylene oxide)100 (PEO100-PPO65-PEO100 ...
Aixiong Mei, Xiaolei Guo, Yanwei Ding, Xinghong Zhang, Junting Xu, Zhiqiang Fan, Binyang Du   +6 more
openaire   +1 more source

Surface modification of layered zirconium phosphate with PNIPAM

Chemical Communications, 2016
A new method to surface modify layered ZrP with PNIPAM, and a covalently connection was formed between ZrP and PNIPAM.
Xuezhen, Wang, Di, Zhao, Ilse B Nava, Medina, Agustin, Diaz, Huiliang, Wang, Abraham, Clearfield, M Sam, Mannan, Zhengdong, Cheng   +7 more
openaire   +2 more sources

Temperature-regulated protein adsorption on a PNIPAm layer

Soft Matter, 2018
Two different cases of the unexpected triple-responsive behavior of protein orientation regulated by a PNIPAm layer.
Chao Feng, Yong Liu, Chun-lai Ren
openaire   +2 more sources

PNIPAm-based microgels with a UCST response

Polymer, 2017
Abstract Thermoresponsive microgels with an upper critical solution temperature (UCST) response (i.e., showing volume expansion at higher temperature) are highly desirable for a variety of applications, but quite uncommon, in particular if they are to work in physiological conditions.
Gema Marcelo, Laurinda R.P. Areias, María Teresa Viciosa, J.M.G. Martinho, José Paulo S. Farinha   +4 more
openaire   +1 more source