Polyvinyl alcohol and aminated cellulose nanocrystal membranes with improved interfacial compatibility for environmental applications

Ahmad, Saleem; Jahan, Zaib; Sher, Farooq; Niazi, Muhammad Bilal Khan; Nооr, Tayyaba; Hou, Honghao; Azhar, Ofaira; Sher, Emina Karahmet

doi:10.1016/j.envres.2022.113793

Cited by 36 publications

(27 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The spectra were collected with a resolution of ±2 cm −1 at 16 scans. First of all, pallets of KBr (potassium bromide) were prepared and then a sample of BMB was placed on the pellet and subjected to the IR radiations 30 . While the sample of membranes was directly fit in the sample cell and subjected to IR radiation.…”

Section: Methodsmentioning

confidence: 99%

“…First of all, pallets of KBr (potassium bromide) were prepared and then a sample of BMB was placed on the pellet and subjected to the IR radiations. 30 While the sample of membranes was directly fit in the sample cell and subjected to IR radiation. Different functional groups that were present in the sample were studied.…”

Section: Fourier Transform Infrared Spectroscopymentioning

confidence: 99%

See 1 more Smart Citation

Regulating the structure of thermoplastic polyurethane elastomers with a diol chain extender to strength performance

et al. 2023

J of Applied Polymer Sci

View full text Add to dashboard Cite

The structural defects of thermoplastic polyurethane elastomer (TPU) caused by the uneven distribution of hard segments limiting their potential application in special industrial fields such as aerospace or defense equipment. Optimizing the TPUs' structure is a useful method to adjustable uneven distribution of hard segments and enhance the performance of TPUs. In this work, a chain extender (BMB) embedded in carbamate‐derive units was successfully synthesized by 4,4′‐diphenylmethane diisocyanate (MDI) and 1,4‐butanediol (BDO). Using BMB and as chain extender, a modified BMB‐TPU was prepared, and its properties were systematically evaluated. Compared with conventional thermoplastic polyurethane elastomer (BDO‐TPU), BMB‐TPU had a regular structure with uniform hard segments, narrower molecular weight distribution and stronger intra/inter‐chain hydrogen bonding interactions, and thus better microphase separation. The BMB‐TPU exhibited an excellent tensile strength of 35 MPa, 46% higher than 24 MPa for the control BDO‐TPU. Moreover, the heat resistance of BMB‐TPU was also reinforced compared to BDO‐TPU, with an increase of 7.2°C for the degradation temperature of 5% loss and 9.6°C for the viscous flow transition temperature. We believe our paradigm can provide a feasible guide for designing high‐performance TPUs.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Fourier Transform Infrared Spectroscopymentioning

confidence: 99%

Regulating the structure of thermoplastic polyurethane elastomers with a diol chain extender to strength performance

et al. 2023

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…According to the previously reported method, the swelling kinetics of hydrogel was investigated. [36][37][38] The dry hydrogel (0.1 g, 40 mesh) samples were immersed in distilled water (500 ml) at a set time interval (3,5,10,15,30,45,60,75,90,120,150,180,210, and 240 min). The water absorption rate at each time point was consistent with Section 2.5.1.…”

Section: Swelling Kineticsmentioning

confidence: 99%

Synthesis of tamarind seed gum‐based semi‐IPN hydrogels with integration of fertilizer retention and anti‐evaporation

Liu

Feng

Ding

et al. 2022

J of Applied Polymer Sci

View full text Add to dashboard Cite

In this article, a tamarind seed gum-g-poly (acrylic acid-co-2-Acrylamido-2-methyl-1-propane sulfonic acid/polyvinyl alcohol) (TSG-g-P[AA-co-AMPS/ PVA]) was prepared by aqueous solution polymerization. The Fourier transform infrared spectroscopy, scanning electron microscopy, and thermogravimetric analysis were used to characterize. The swelling behaviors, reusability and water-retention capabilities of hydrogels were evaluated. Under optimum synthesis conditions, the maximum equilibrium absorption of hydrogel was 1295 gÁg À1 , 208 gÁg À1 , 116 gÁg À1 in deionized water, tap water and NaCl solution (0.9 wt%) respectively. Application of the hydrogel to soils increased their water-holding and fertilizer retention capacities. Furthermore, the excellent water retention anti-evaporation performance indicated that the hydrogel has the potential for applications in future sustainable agriculture and forestry.

show abstract

“…[ 14 , 16 ]. Organic polymers, primarily polysulfone (PSF) [ 48 , 49 , 50 , 51 , 52 ], poly(ether sulfone) (PES) [ 53 ], polyacrylonitrile (PAN) [ 54 , 55 ], polyamide [ 56 , 57 ], polyimide [ 58 , 59 ], cellulose acetate membrane [ 60 , 61 , 62 , 63 ], polylactic acid [ 64 , 65 , 66 , 67 ], polyvinyl alcohol (PVA) [ 68 , 69 , 70 ], poly-(vinylidene fluoride) (PVDF) [ 71 , 72 , 73 , 74 ], and polytetrafluoroethylene (PTFE) [ 75 , 76 , 77 ], are all often employed in water filtering membranes.…”

Section: Introductionmentioning

confidence: 99%

Prospects of Polymeric Nanocomposite Membranes for Water Purification and Scalability and their Health and Environmental Impacts: A Review

2022

View full text Add to dashboard Cite

Water shortage is a major worldwide issue. Filtration using genuine polymeric membranes demonstrates excellent pollutant separation capabilities; however, polymeric membranes have restricted uses. Nanocomposite membranes, which are produced by integrating nanofillers into polymeric membrane matrices, may increase filtration. Carbon-based nanoparticles and metal/metal oxide nanoparticles have received the greatest attention. We evaluate the antifouling and permeability performance of nanocomposite membranes and their physical and chemical characteristics and compare nanocomposite membranes to bare membranes. Because of the antibacterial characteristics of nanoparticles and the decreased roughness of the membrane, nanocomposite membranes often have greater antifouling properties. They also have better permeability because of the increased porosity and narrower pore size distribution caused by nanofillers. The concentration of nanofillers affects membrane performance, and the appropriate concentration is determined by both the nanoparticles’ characteristics and the membrane’s composition. Higher nanofiller concentrations than the recommended value result in deficient performance owing to nanoparticle aggregation. Despite substantial studies into nanocomposite membrane manufacturing, most past efforts have been restricted to the laboratory scale, and the long-term membrane durability after nanofiller leakage has not been thoroughly examined.

show abstract

Polyvinyl alcohol and aminated cellulose nanocrystal membranes with improved interfacial compatibility for environmental applications

Cited by 36 publications

References 40 publications

Regulating the structure of thermoplastic polyurethane elastomers with a diol chain extender to strength performance

Regulating the structure of thermoplastic polyurethane elastomers with a diol chain extender to strength performance

Synthesis of tamarind seed gum‐based semi‐IPN hydrogels with integration of fertilizer retention and anti‐evaporation

Prospects of Polymeric Nanocomposite Membranes for Water Purification and Scalability and their Health and Environmental Impacts: A Review

Contact Info

Product

Resources

About