نتایج جستجو برای: thermoresponsive membrane

تعداد نتایج: 390370  

Journal: :Chemical communications 2010
Chunhua Wang Fangkai Du Helou Xie Hailiang Zhang Erqiang Chen Qifeng Zhou

Two novel semirigid smart polymers based on mesogen-jacketed liquid crystal polymers were successfully synthesized via free radical polymerization, which showed both characteristic liquid crystal properties of mesogen-jacketed liquid crystal polymers and remarkably reversible thermoresponsive phase transition behaviors.

Journal: :Polymer Chemistry 2023

Herein, we report the self-assembly and salt-induced thermoresponsive properties of amphiphilic random terpolymers consisting hydrophilic poly(ethylene glycol) (PEG) quaternary ammonium cations, hydrophobic dodecyl groups in water.

Journal: :Journal of the American Chemical Society 2006
Zhifeng Jia Hao Chen Xinyuan Zhu Deyue Yan

A new type of materials, the backbone-thermoresponsive hyperbranched polyether, was successfully synthesized by proton-transfer polymerization of 1,4-butanediol diglycidyl ether and various triols, and the lower critical solution temperature (LCST) values can be readily adjusted from 19.0 to 40.3 degrees C by changing the hydrophilic/hydrophobic balance of BDE and triols.

Journal: :Polymer Chemistry 2022

Thermoresponsive ionic liquid hydrogel delivery vehicles of reduced gelation temperature for injectable and controlled drug applications.

2016
Jia-Ying Zhu Eunkyoo Oh Tina Wang Zhi-Yong Wang

Arabidopsis adapts to elevated temperature by promoting stem elongation and hyponastic growth through a temperature-responsive transcription factor PIF4. Here we show that the evening-expressed clock component TOC1 interacts with and inactivates PIF4, thereby suppressing thermoresponsive growth in the evening. We find that the expression of PIF4 target genes show circadian rhythms of thermosens...

2016
Khaled Belal François Stoffelbach Joël Lyskawa Matthieu Fumagalli Dominique Hourdet Alba Marcellan Lieselot De Smet Victor R de la Rosa Graeme Cooke Richard Hoogenboom Patrice Woisel

Most polymeric thermoresponsive hydrogels contract upon heating beyond the lower critical solution temperature (LCST) of the polymers used. Herein, we report a supramolecular hydrogel system that shows the opposite temperature dependence. When the non-thermosesponsive hydrogel NaphtGel, containing dialkoxynaphthalene guest molecules, becomes complexed with the tetra cationic macrocyclic host CB...

2007
Chia-Yu Lin Kuo-Chuan Ho

Superparamagnetic magnetite nanoparticles (MNPs), Fe3O4, were synthesized via the modified coprecipitation method. The morphology of these MNPs is polyhedral. The particle size of MNPs ranged from 20 to 100 nm. For combined hyperthermia and thermoresponsive drug delivery applications, the heating element, MNPs, in the core of drug carriers should increase the temperature of the target up to 43 ...

Journal: :ACS applied materials & interfaces 2012
A Evren Özçam Kristen E Roskov Jan Genzer Richard J Spontak

Poly(ethylene terephthalate) (PET) is one of the most important thermoplastics in ubiquitous use today because of its mechanical properties, clarity, solvent resistance, and recyclability. In this work, we functionalize the surface of electrospun PET microfibers by growing poly(N-isopropylacrylamide) (PNIPAAm) brushes through a chemical sequence that avoids PET degradation to generate thermores...

Journal: :Journal of nanoscience and nanotechnology 2011
Ehsan Yakhshi Tafti Ghanashyam Londe Anindarupa Chunder Lei Zhai Ranganathan Kumar Hyoung J Cho

This work addresses the synthesis, integration and characterization of a nanostructure-embedded thermoresponsive surface for flow regulation. In order to create a hierarchic structure which consists of microscale texture and nanoscale sub-texture, hybrid multilayers consisting of poly(allylamine hydrochloride) (PAH), poly(acrylic acid) (PAA) and colloidal silica nanoparticles (average diameter ...

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