Results 31 to 40 of about 27,905 (245)

Characterization of Ball-milled Poly(Nisopropylacrylamide) Nanogels

open access: yesCurrent Directions in Biomedical Engineering, 2022
Poly(N-isopropylacrylamide) (PNIPAM) hydrogels are one of the most commonly studied thermoresponsive biomaterials. In this work, we investigate ball milling as a method of producing PNIPAM nanogels and confirm that the temperature responsiveness is ...
Huling Jennifer   +4 more
doaj   +1 more source

Photo-responsive polymeric structures based on spiropyran [PDF]

open access: yes, 2012
Spiropyrans are one of the most popular classes of photochromic compounds that change their optical and structural properties in response to external inputs such as light, protons and metal ions, making them ideal molecules for the fabrication of ...
Adelmann   +82 more
core   +2 more sources

Water flow in poly(N-isopropylacrylamide) gels

open access: yesThe Journal of Chemical Physics, 2006
Friction between a polymer network of poly(N-isopropylacrylamide) gels and solvent water was investigated. The gel was mechanically constrained in a glass capillary at gelation, and hydrostatic pressure was directly applied to the cross section of the cylinder.
Atsushi, Suzuki, Muneyuki, Yoshikawa
openaire   +2 more sources

An Orthogonal Modular Approach to Macromonomers Using Clickable Cyclobutenyl Derivatives and RAFT Polymerization [PDF]

open access: yes, 2012
A series of cyclobutene-based macromonomers derived from monomethyl ether poly(ethylene oxide) (PEO), poly(ethyl acrylate) (PEA), poly(N-isopropylacrylamide) (PNIPAM), and PEO-b-PNIPAM were synthesized by “click” copper-catalyzed azide−alkyne ...
D. Le   +4 more
core   +4 more sources

Functionalization of Multi-Walled Carbon Nanotubes with Thermo-Responsive Azide-Terminated Poly(N-isopropylacrylamide) via Click Reactions

open access: yesMolecules, 2013
Covalently functionalized multi-walled carbon nanotubes (MWNTs) were prepared by grafting well-defined thermo-responsive poly(N-isopropylacrylamide) (PNIPAM) via click reactions.
Yujun Feng, Zanru Guo, Ya Shuai, Xin Su
doaj   +1 more source

Controlled surface initiated polymerization of N-isopropylacrylamide from polycaprolactone substrates for regulating cell attachment and detachment [PDF]

open access: yes, 2012
Poly(ε-caprolactone) (PCL) substrates were modified with thermoresponsive poly(N-isopropylacrylamide) (PNIPAM) brushes to direct and control cellular attachment and detachment. Prior to brush growth, the surface of PCL was activated by a diamine to allow
Blitterswijk, C.A. van   +5 more
core   +3 more sources

Synthesis, rheological behavior and swelling properties of copolymer hydrogels based on poly(N-isopropylacrylamide) with hydrophilic monomers

open access: yesBulletin of the Chemical Society of Ethiopia, 2013
In this study, hydrogels of poly(N-isopropylacrylamide-co-acrylamide) and poly(N-isopropylacrylamide-co-acrylic acid) having a thermoresponsive character were prepared by aqueous free-radical co-polymerization using the ammonium persulfate/N,N,N',N ...
D. Aliouche, N. Seddiki
doaj   +1 more source

The enhanced polymer-coated graphite anode electrodes for the electrooxidation of glucose

open access: yesMANAS: Journal of Engineering, 2023
In this study, poly(N-Isopropylacrylamide) (PNIPAM), poly(acrylamide) (PAAM), poly(acrylic acid) (PAAc), and poly(methacrylic acid) (PMAc) polymers are synthesized by radical polymerization method.
Aykut Çağlar
doaj   +1 more source

A versatile characterization of poly(N-isopropylacrylamideco- N,N'-methylene-bis-acrylamide) hydrogels for composition, mechanical strength, and rheology [PDF]

open access: yes, 2013
Poly(N-isopropylacrylamide-co-N,N"-methylene-bisacrylamide) (P(NIPAAm-co-MBA)) hydrogels were prepared in water using redox initiator. The copolymer composition at high conversion (> 95%) was determined indirectly by HPLC (high performance liquid ...
Chetty, A.   +7 more
core   +1 more source

Thermoresponsive Al3+-crosslinked poly(N-isopropylacrylamide)/alginate composite for green recovery of lithium from Li-spiked seawater

open access: yesGreen Energy & Environment, 2022
With the rapid increase in the demand for lithium as an energy-critical element, the recovery of Li+ ions from seawater is a worldwide challenging issue.
Sung Ho Park, Sang Joon Lee
doaj   +1 more source

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