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Moiré superlattice-driven bionic hydrogel robot with programmable multifunctionality. [PDF]
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Parallel Effects of Cations on PNIPAM Graft Wettability and PNIPAM Solubility
ACS Applied Materials & Interfaces, 2010Stimuli-responsive surfaces grafted with thermoresponsive polymers switch from hydrophilic to hydrophobic thermally, making these surfaces attractive in applications such as in microfluidics devices, as antifouling surfaces, and in cell culture and tissue engineering.
Hui, Fu +4 more
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Effects of stereochemistry and copolymerization on the LCST of PNIPAm
The Journal of Chemical Physics, 2017Poly(N-isopropylacrylamide) (PNIPAm) is a smart polymer that presents a lower critical transition temperature (LCST) of 305 K. Interestingly, this transition point falls within the range of the human body temperature, making PNIPAm a highly suitable candidate for bio-medical applications.
Tiago E. de Oliveira +3 more
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Synthesis and micelle behavior of (PNIPAm-PtBA-PNIPAm)m amphiphilic multiblock copolymer
Polymer, 2010Abstract A linear amphiphilic multiblock copolymer (PNIPAm-PtBA-PNIPAm)m was successfully synthesized by a two-step reversible addition–fragmentation transfer (RAFT) polymerization in the presence of a cyclic trithiocarbonate as RAFT agent. The micelle behavior of (PNIPAm-PtBA-PNIPAm)m multiblock copolymer in aqueous solution was then investigated by
Binyang Du +6 more
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LCST Behavior of Symmetrical PNiPAm-b-PEtOx-b-PNiPAm Triblock Copolymers
Macromolecules, 2016Poly(N-isopropylacrylamide) (PNiPAm) and poly(2-ethyl-2-oxazoline) (PEtOx) represent two polymer types that are well-known for their lower critical solution temperature (LCST) behavior in aqueous media. To synthesize triblock copolymers containing both polymers, a crossover of two different polymerization methods was applied using a bifunctional ...
Dirauf, Michael +6 more
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Poly(N-isopropylacrylamide) (PNIPAM) is never hydrophobic
Journal of Colloid and Interface Science, 2010PNIPAM chains have hydrophobic and hydrophilic domains below and above the LCST. Temperature dependent interactions between PNIPAM and solutes arise because of changes in the local environment around the hydrophobic isopropyl domains. Below the LCST the isopropyl groups are surrounded by water, whereas above the LCST the hydrophobic groups are in ...
Robert Pelton
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Preparation and Properties of Cyclodextrin/PNIPAm Microgels
Macromolecular Bioscience, 2009AbstractA two‐stage precipitation polymerization in aqueous solution was used to prepare β‐cyclodextrin/poly(N‐isopropylacrylamide) (β‐CD/PNIPAm) core–shell microgels. At the first stage, core microgels with CD moieties were synthesized by precipitation copolymerization of N‐isopropylacrylamide (NIPAm) with a monovinyl β‐CD monomer. At the second stage,
Yu-Yang, Liu +4 more
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Langmuir, 2004
The adsorption of a rhodamine X labeled oligonucleotide composed of 25-mers of thymine (dT(25)-ROX) onto the thermosensitive shell of PMMA/PNIPAM core-shell latex particles was studied at 22 and 40 degrees C, below and above the T(VPT) (volume phase transition temperature) of the PNIPAM shell, respectively.
T J V, Prazeres +4 more
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The adsorption of a rhodamine X labeled oligonucleotide composed of 25-mers of thymine (dT(25)-ROX) onto the thermosensitive shell of PMMA/PNIPAM core-shell latex particles was studied at 22 and 40 degrees C, below and above the T(VPT) (volume phase transition temperature) of the PNIPAM shell, respectively.
T J V, Prazeres +4 more
openaire +2 more sources