Nitrogen Rich CO2-Responsive Polymers as Forward Osmosis Draw Solutes

2019 ◽  
Vol 58 (50) ◽  
pp. 22579-22586
Author(s):  
Sarah N. Ellis ◽  
Anna Riabtseva ◽  
Ryan R. Dykeman ◽  
Sam Hargreaves ◽  
Tobias Robert ◽  
...  
Keyword(s):  
Forward Osmosis ◽  
Responsive Polymers

scholarly journals Polymer Having Dicationic Structure in Dumbbell Shape for Forward Osmosis Process

Polymers ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 571 ◽  
Author(s):  
Taehyung Kim ◽  
Changha Ju ◽  
Chanhyuk Park ◽  
Hyo Kang
Keyword(s):  
Aqueous Solutions ◽  
Pure Water ◽  
Water Flux ◽  
Forward Osmosis ◽  
Feed Solution ◽  
Solution Temperature ◽  
Solute Flux ◽  
Responsive Polymers ◽  
Draw Solution ◽  
Efficient Recovery

The thermal-responsive polymers, poly(alkane-1,#-diylbis(tri-n-butylphosphonium) 4-vinylbenzenesulfonate) (PSSBP#, # = 8, 6, and 4), where # is the number of carbon atoms in the central bridge structure of the dicationic phosphonium moiety, were synthesized to examine their potential application as draw solutes in forward osmosis (FO). The polymers exhibited low critical solution temperature (LCST) characteristics in aqueous solutions, which is essential for recovering a draw solute from pure water. The LCSTs of the 20 wt% aqueous solutions of PSSBP8, PSSBP6, and PSSBP4 were confirmed to be approximately 30, 38, and 26 °C, respectively, which is advantageous in terms of energy requirements for the recovering draw solute. When the concentration of the PSSBP4 draw solution was 20 wt%, water flux and reverse solute flux were approximately 1.61 LMH and 0.91 gMH, respectively, in the active layer facing the draw solution (AL-DS) system when the feed solution was distilled water. The PSSBP# thermal-responsive draw solute has considerable potential for use as a next-generation draw solute because of its excellent osmotic performance and efficient recovery. Therefore, this study provides inspiration for novel ideas regarding structural transformations of polymers and their applicability as draw solutes.

CO2 switchable dual responsive polymers as draw solutes for forward osmosis desalination

2013 ◽  
Vol 49 (75) ◽  
pp. 8377 ◽  
Author(s):  
Yufeng Cai ◽  
Wenming Shen ◽  
Rong Wang ◽  
William B. Krantz ◽  
Anthony G. Fane ◽  
...  
Keyword(s):  
Forward Osmosis ◽  
Responsive Polymers ◽  
Dual Responsive

Amino-functional polyethers: versatile, stimuli-responsive polymers

2020 ◽  
Vol 11 (24) ◽  
pp. 3940-3950 ◽  
Author(s):  
Patrick Verkoyen ◽  
Holger Frey
Keyword(s):  
Ring Opening ◽  
Review Article ◽  
Stimuli Responsive ◽  
New Class ◽  
Stimuli Responsive Polymers ◽  
Responsive Polymers

Amino-functional polyethers have emerged as a new class of “smart”, i.e. pH- and thermoresponsive materials. This review article summarizes the synthesis and applications of these materials, obtained from ring-opening of suitable epoxide monomers.

Smart Drug Release Systems Based on Stimuli-Responsive Polymers

2013 ◽  
Vol 13 (9) ◽  
pp. 1369-1380 ◽  
Author(s):  
Guangyan Qing ◽  
Minmin Li ◽  
Lijing Deng ◽  
Ziyu Lv ◽  
Peng Ding ◽  
...  
Keyword(s):  
Drug Release ◽  
Stimuli Responsive ◽  
Stimuli Responsive Polymers ◽  
Responsive Polymers ◽  
Smart Drug

Sustainable fertilizer-drawn forward osmosis for the vegetable industry in reducing liquor from vegetable waste

2019 ◽  
pp. 1-9
Author(s):  
Jin Wang ◽  
Shuwei Zhao ◽  
Pengjia Dou ◽  
Xuemei Li ◽  
Dengxin Li ◽  
...  
Keyword(s):  
Forward Osmosis ◽  
Vegetable Waste
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