PAsp/PEBA IPN hydrogel composite membrane was prepared by crosslinking and hydrolysis of polysuccinimide (PSI) with hexamethylene diamine (HDA) as crosslinker.The membranes were characterized by scanning electron microscope (SEM),attenuated total reflectance fouriertransform infrared spectroscopy (ATR-FTIR),and thermogravimetric analysis (TA).The effects of composition on the water-absorbing performance,the water content and the combined form between the absorbed water and PAsp/PEBA IPN were systematically investigated.The introduction of PAsp not only effectively regulated the water content and existence state of PAsp/PEBA IPN,but also improved the mechanical properties of PEBA.The membrane showed the best comprehensive performance at the content of 15% PSI and 3% HDA.The water absorption rate was up to 32.01% and the bound water was 3.19%.The tensile strength and elongation at break of PAsp/PEBA IPN increased 21.80% and 43.42%,respectively,comparing to the the pure PEBA membrane.SEM showed that phase separation occurred in the membrane when the content of PSI was 20%.
[1] Schmidt G,Archer D.Climate change:too much of a bad thing[J].Nature,2009,458(7242):1117-1118.
[2] Yue M,Hoshino Y,Ohshiro Y,et al.Temperature-responsive microgel films as reversible carbon dioxide absorbents in wet environment[J].Angewandte Chemie,2014,126(10):2692-2695.
[3] Muntha S T,Kausar A,Siddiq M.Progress on polymer-based membranes in gas separation technology[J].Polymer-Plastics Technology and Engineering,2016,55(12):82-98.
[4] Luis P,Bruggen B V D.The role of membranes in post-combustion CO2 capture[J].Greenhouse Gases Science & Technology,2013,3(5):318-337.
[5] Xiao Y C,Chung T S.Grafting thermally labile molecules on cross-linkable polyimide to design membrane materials for natural gas purification and CO2 capture[J].Energy & Environmental Science,2011,4(1):201-208.
[6] Simons K,Nijmeijer K,Sala J G,et al.CO2 sorption and transport behavior of ODPA-based polyetherimide polymer films[J].Polymer,2010,51(17):3907-3917.
[7] Nafisi V,Hägg M B.Development of dual layer of ZIF-8/PEBAX-2533 mixed matrix membrane for CO2 capture[J].Journal of Membrane Science,2014,459:244-255.
[8] Wang J,Wang S,Xin Q,et al.Perspectives on water-facilitated CO2 capture materials[J].Journal of Materials Chemistry A,2017,5(15):6794-6816.
[9] Liu Y,Yu S,Wu H,et al.High permeability hydrogel membranes of chitosan/poly ether-block-amide blends for CO2 separation[J].Journal of Membrane Science,2014,469:198-208.
[10] Li P,Poon Y F,Li W,et al.A polycationic antimicrobial and biocompatible hydrogel with microbe membrane suctioning ability[J].Nature Materials,2011,10(2):149-156.
[11] Liu L,Chakma A,Feng X.Gas permeation through water-swollen hydrogel membranes[J].Journal of Membrane Science,2008,310(1-2):66-75.
[12] Park Y I,Lee K H.Preparation of water:wollen hydrogel membranes for gas separation[J].Journal of Applied Polymer Science,2001,80(10):1785-1791.
[13] Eljko J,Filip R.Polyethersulfone/poly(acrylic acid) composite hydrogel membrane reservoirs for controlled delivery of cationic drug formulations[J].Polymer,2018,147:56-66.
[14] Yang J M,Su W Y,Leu T L,et al.Evaluation of chitosan/PVA blended hydrogel membranes[J].Journal of Membrane Science,2004,236(1-2):39-51.
[15] Wu Y Z,Zhou T T,Hong W,et al.Constructing robust and highly-selective hydrogel membranes by bioadhesion-inspired method for CO2 separation[J].Journal of Membrane Science,2018,563:229-237.
[16] El-Azzami L A,Grulke E A.Parametric study of CO2 fixed carrier facilitated transport through swollen chitosan membranes[J].Industrial & Engineering Chemistry Research,2009,48(2):894-902.
[17] Stammen J A,Williams S,Ku D N,et al.Mechanical properties of a novel PVA hydrogel in shear and unconfined compression[J].Biomaterials,2001,22(8):799-806.
[18] Dong L,Zhang C,Bai Y,et al.A high performance PEBA2533-funcitonal MMT mixed matrix membrane containing high-speed facilitated transport channels for CO2/N2 separation[J].ACS Sustainable Chemistry & Engineering,2016,4(6):3486-3496.
[19] Liu C L,Ding C,Hao X G,et al.Molecular dynamics simulation and experimental investigation of furfural separation from aqueous solutions via PEBA-2533 membranes[J].Separation and Purification Technology,2018,207:42-50.
[20] Li X,Wang M,Wang S,et al.Constructing CO2 transport passageways in Matrimid membranes using nanohydrogels for efficient carbon capture[J].Journal of Membrane Science,2015,474:156-166.
[21] 赵俭波,魏军,谭天伟,等.聚天冬氨酸水凝胶的研究与应用进展[J].化工进展,2019,38(7):3355-3364.[22] 胡灯,李琼,赵彦生,等.改性聚天冬氨酸/聚(丙烯酸-丙烯酰胺)互穿网络吸水性树脂的制备及表征[J].高分子材料科学与工程,2016,32(10):30-35.
[23] Zhao S,Wang Z,Qiao Z,et al.Gas separation membrane with CO2-facilitated transport highway constructed from amino carrier containing nanorods and macromolecules[J].Journal of Materials Chemistry A,2013,1(2):246-249.
[24] 张圣博,赵彦生,陈小玲,等.不同分散剂对聚天冬氨酸吸水树脂性能的影响[J].精细化工,2014,31(1):85-89.
[25] Ghadimi A,Mohammadi T,Kasiri N.A novel chemical surface modification for the fabrication of PEBA/SiO2 nanocomposite membranes to separate CO2 from syngas and natural gas streams[J].Industrial & Engineering Chemistry Research,2014,53(44):17476-17486.
[26] Ghadimi A,Amirilargani M,Mohammadi T,et al.Preparation of alloyed poly(ether block amide)/poly(ethylene glycol diacrylate) membranes for separation of CO2/H2 (syngas application)[J].Journal of Membrane Science,2014,458(2):14-26.
[27] Chen J C,Feng X S,Penlidis A.Gas permeation through poly(ether-b-amide)(PEBAX 2533) block copolymer membranes[J].Separation Science and Technology,2005,39(1):149-164.
