REACTIVE & FUNCTIONAL POLYMERS
·
2021
·
IF 3.975
Maliang Zhang,Yu Gao,Yuxin Zhang,Mengen Zhang,Yuan Gao,Bowen Cheng,Zhenhuan Li
In recent years, polyphenylene sulfide (PPS) membranes have gained immense attention owing to their excellent separation performance. However, a single material is often insufficient in achieving desirable material properties . To this end, combining two or more materials to form composites is an efficient approach. In this study, a polyphenylene sulfide/oxidized polyphenylene sulfide (PPS/O-PPS) composite membrane was prepared through post-modification of a PPS membrane fabricated by thermally induced phase separation in an oxidizing solution consisting of H 2 O 2 , CH 3 COOH, and Amberlyst 15. Next, sulfonal (-SO 2 -) groups were introduced on the membrane surface by oxidation . The Fourier transform infrared spectroscopy , X-ray photoelectron spectroscopy, X-ray diffraction, and scanning electron microscopy confirmed the formation of PPS/O-PPS membrane. Compared to the PPS membrane, the composite membrane showed good hydrophilicity , chemical and solvent resistance , superior water flux, and anti-fouling performance. Furthermore, the dye separation performance of the composite membrane was investigated. The composite membrane showed a separation efficiency of more than 94% for methyl blue and Congo red. Therefore, the PPS/O-PPS composite membrane prepared in this study is a promising alternative as it possesses dye rejecting properties and can find practical applications under harsh environmental conditions.
研究领域:
材料科学
·
膜技术
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
HIGH PERFORMANCE POLYMERS
·
2021
·
IF 2.161
Yumin He,Pengcheng Li,Haohao Ren,Xi Zhang,Xiulian Chen,Yonggang Yan
A series of neutron absorbing materials with good neutron absorbing capacity, high strength and good thermal property were designed and prepared in this work. First of all, polyphenylene sulfide containing different mole content of salicylic acid (SAPPS) in the main chain was synthesized by nucleophilic substitution polymerization under high pressure. Then the composites with different content of nano Gd2O3 and modified PPS were prepared by melt blending method. The testing results indicated that the copolymers SAPPS were synthesized successfully, there was an interface interaction between nano Gd2O3 and the matrix without the need for surfactants or coupling agents. Additionally, the content of nano Gd2O3 had no obvious influence on the thermal property of the composites. While following with the increase of the content of nano Gd2O3, the tensile strength of the composites increased firstly and then decreased, when the content of nano Gd2O3 was 10 wt%, the tensile strength of 10%Gd2O3/5%SAPPS reached the maximum value of 74.9 MPa. The results of neutron shielding testing indicated that the content of nano-particles had a large effect on the neutron shielding rate of composites. The neutron shielding rate of 50%Gd2O3/5%SAPPS composite was up to 83%. All of these results indicated that the Gd2O3/5%SAPPS had potential to be applied to the high-temperature resistance and thermal shielding materials in nuclear and aerospace applications.
研究领域:
材料科学
·
核工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Polymer Materials
·
2022
·
IF 4.855
Cheng-yuan Feng,Hai-jun Chen,Meng-yao Yang,Zhe-sheng Feng,Yan Wang
An economical and efficient strategy for fabricating high-performance metallic copper layers on polyphenylene sulfide (PPS) for high-frequency microwave applications via mussel-inspired surface modification and electroless copper plating (ECP) is illustrated in this paper. Through UV-induced surface modification of catechol (CA)/polyamine (PA), the modified PPS substrate is capable of adsorbing silver particles, which provides activation sites for subsequent ECP. The impact of CA/PA modification on the relationship between PPS and the deposited copper layer can be determined by water contact angle measurements, X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and tape peel tests. The involvement of CA/PA has successfully introduced the functional groups for chemical bonding on the PPS surface, which greatly improves the adhesion between the PPS and the deposited copper layer. Moreover, after 40 min of ECP, the produced copper layer exhibits good adhesion at the 5B level (according to the ASTM D3559) and an excellent conductivity of 0.37 S/m (approx. 62% of bulk copper). Meanwhile, the deposited copper layer also has good resistance to acid, alkali, and salt corrosion (less than 25 g/m2 per unit area weight loss after 60 h of corrosion). This approach opens up an efficient path for the surface metallization of PPS, which has a broad potential for application in high-frequency copper-clad laminates (CCLs).
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
POLYMER ENGINEERING AND SCIENCE
·
2025
·
IF 3.2
Yini Cui,Jiyong Zhao,Minjie Qu,Zhipeng Wang
The toughened polyphenylene sulfide (PPS) was prepared using copolymer poly(aryl ether sulfone ketone) as the toughening agent, which was synthesized through copolycondensation of 2-phenyl-3,3-bis(4-hydroxyphenyl)phthalimide, 1,4-bis(4-fluorophenyl)butane-1,4-diketone (BFB), and bis(4-fluorophenyl)sulfone (DFS) as monomers. The properties of the copolymers were regulated by controlling the ratio of BFB and DFS. The glass transition temperature ( T g ) exceeds 210°C, and the thermal decomposition temperature ( T d 5% ) surpasses 430°C, demonstrating the copolymer's excellent thermal stability. When the mole ratio of sulfone to ketone was 8:2, the impact strength exhibited an increase of approximately 178% compared to that of neat PPS. The influences of the toughening agent and blending method on the thermal properties, rheological properties, and mechanical properties of the blends were examined. Highlights Copolymer was synthesized as a toughening agent for polyphenylene sulfide (PPS). Copolymer demonstrates good thermal stability properties. Adding copolymer and EGMA significantly improved the toughness of PPS.
研究领域:
材料科学
·
高分子化学
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2025
·
IF 8.3
Yunyong Tang,Wen Song,Miao Guo,Guofeng Yang,Kunmei Su,Maliang Zhang,Zhenhuan Li
The separator plays a crucial role in alkaline water electrolysis (AWE) by conducting hydroxide ions and separating gases. Therefore, developing a high-performance AWE separator is of significant importance. This study proposes a method for preparing a hydrophilic polyphenylene sulfide (PPS) fabric separator. Firstly, PPS fabric separator undergoes a chloromethylation reaction to graft chloromethyl groups onto its surface, increasing its reactivity. Subsequently, chemical grafting introduces imidazole groups and quaternary ammonium groups to improve hydrophilicity. The modified PPS separator can rapidly conduct hydroxide ions and facilitate gas separation in alkaline solutions. Experimental results show that the modified PPS separator exhibits an area resistance of 0.219 Ω cm 2 in 30 wt % KOH solution at 80 °C, which is a 74.86 % reduction compared to the unmodified separator. Additionally, the bubble point pressure is enhanced by 2.46 %. During alkaline electrolysis experiments in a custom zero-gap electrolyzer, the modified separator demonstrates a current density of 493 mA cm −2 at a voltage of 2 V and maintains the stable performance after 500 h of operation, indicating the excellent electrolytic stability. This study provides a feasible reference for the industrial production of low-resistance, high gas-tightness AWE hydrogen production separators.
研究领域:
材料科学
·
电化学工程
✓ 已验证
产品关联
DOI
高影响因子
POLYMER
·
2024
·
IF 4.1
Hong Cao,Bing Zhang,Wei Wang,Yongzhao Li,Mengke Jia,Weihe Yu,Longmin Liu,Jianying Huang,Huaiyin Chen,Yuekun Lai,Weilong Cai
Polyphenylene sulfide (PPS), commonly used as a core material for high-temperature flue gas treatment, exhibits elevated viscosity when processed even at temperature exceeding 280 °C. In this study, a novel high-flowability PPS-based composite was fabricated through the incorporation of graphitic carbon nitride (g-C 3 N 4 ) via a well-established melt extrusion procedure. The enhancement of flowability in PPS was verified, and the material's texture structures and fundamental properties of composites with varying contents were determined. The composites exhibit well-dispersed g-C 3 N 4 , a significant reduction in shear viscosity (>10 %), a notable increase in melt index (>30 %), improved crystallinity , and comparable or superior performance compared to pure PPS. When the g-C 3 N 4 was introduced into the PPS matrix, a phase-separated composite structure was formed. This structure reduces the entanglement degree between the PPS molecular chains and provides more space for free-movement of the PPS chains, and thus the improvement in flowability for the composites can be clearly demonstrated. Therefore, g-C 3 N 4 can be used as a novel flow modifier to enhance the flowability and stability of PPS resin without compromising its fundamental properties, which offers significant prospects for improving productivity, optimizing energy usage, and managing costs for PPS-based products.
研究领域:
材料科学
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
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2020
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IF 16.683
You Fan,Haijie Ben,Longfeng Li,Sugang Meng,Sujuan Zhang,Xiuzhen Zheng,Jinfeng Zhang,Lichang Yin,Shifu Chen
Polarization has emerged as one of the most effective strategies for charge carriers separation in the bulk and on the surface of photocatalysts. Searching for novel photocatalysts with intrinsic polarity is a challenge to promote the progress of photocatalysis. Herein, a novel organic polymeric photocatalyst —— Polyphenylene sulfide (PPS) is introduced. Bearing the noncentrosymmetric structure and alternant arrangement of thioether bonds and benzene groups, the generated intrinsic polarization of PPS is proposed and proved. Compared with graphitic carbon nitride (g-C 3 N 4 ), PPS exhibits 1.33–5.53 times higher activities for the photodegradation of various contaminants and 50 % more effective performance on the photocatalytic oxidation of benzyl alcohol (BA) to benzaldehyde (BAD) with high selectivity (96 %), which can be ascribed to the spatial separation of charges motivated by the polarization-induced electric field. The investigation of PPS will provide a fresh angle of view for the design and preparation of new metal-free photocatalysts.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
MACROMOLECULAR RESEARCH
·
2018
·Vol. 26
·期 9
·800-807
·
IF 1.767
Wang Chao,Li Zhenhuan,Cao Lei,Cheng Bowen
Polyphenylene sulfide (PPS) membranes were modified by chloromethylation and quaternary amination reaction to prepare a hydrophilic PPS microporous membrane. The structures of the modified PPS membranes were characterized by the use of Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and scanning electron microscopy. The results showed that the modified membranes maintain the same microporous structures as the PPS membrane. The hydrophilicity of the modified membranes was significantly improved compared to that of the PPS membranes, and the water flux of N-methylimidazole modified membranes, triethylamine modified membranes, and both mixture modified membranes achieved 110.475, 168.94, 150.59 L·m −2 ·h −1 , respectively. The quaternary amination of the PPS membranes made much less bovine serum albumin (BSA) pollution accumulation on the top surface of the modified membranes, and there was a significant improvement, to 94%, in the BSA rejection rate. Most importantly, the antibacterial activity of the modified membranes was effectively improved, and the bactericidal rate was elevated to above 80% in comparison with pure PPS membranes, which was attributed to the introduction of quaternary ammonium salts and imidazolium salts in out-surface of the membranes.
研究领域:
材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2017
·Vol. 7
·期 63
·39604-39610
·
IF 3.108
Dan He,Ying Wu,Zhengping Liu,Tuo Zhao
A novel chemical approach to prepare the high performance polymer poly(phenylene sulfide sulfone) under mild conditions was presented based on 4,4-difluorodiphenylsulfone and sodium sulfide (Na2S) in i-pmim PF6 (IL)/MImBS (ZI) at atmospheric pressure and compared with conventional methods. The highest molecular weight (2.5 × 104) and yield (>99%) polymers were synthesized in IL/ZI in the presence of sodium carbonate and sodium hydroxide at 200 °C for 4 h. ZI can significantly improve solubility of the basic inorganic salt Na2S. And using ILs as solvents made removing toluene by purging with nitrogen much easier and the time was shortened significantly from 5–8 min to 1–2 min. In addition, the ILs can be recycled easily and still possess excellent performance.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
TEXTILE RESEARCH JOURNAL
·
2023
·
IF 2.3
Lian Dandan,Lu Jianjun,Yin Lixin,Ge Chao,Wang Baojun
Polyphenylene sulfide fiber is easily oxidized at high temperature, thus vastly reducing its application range. In this study, polyphenylene sulfide/quercetin fibers were prepared via melt spinning. The effect of quercetin on the spinnability of the composite fibers was explored, and their cross-sectional morphology, crystalline properties, orientation, tensile properties, thermal stability and oxidation stability were investigated. At the quercetin content of 1.5 wt.%, particle agglomerates and some gasification, causing fluctuations in melt pressure, fiber breakage and poor spinnability, were observed in the polyphenylene sulfide matrix. The addition of quercetin can increase the crystallization temperature of polyphenylene sulfide, shorten its crystallization time, refine the crystalline particles therein, and improve the degree of fiber orientation. At the quercetin content of 1.0 wt.%, the tensile strength and elongation at break of composite fibers increased by 30.8% and 7.6%, respectively, as compared to those of pure polyphenylene sulfide fibers. Moreover, the decomposition temperature and the oxidation induction temperature at a 5% weight loss were 16.3°C and 13.4°C higher than those of the unmodified PPS fibers. The loss of strength of composite fibers subjected to oxidation for 240 h was only 18.4%. The X-ray diffraction results showed that the phenolic hydroxyl groups in the quercetin structure were able to capture free radicals generated during the oxidation of polyphenylene sulfide fibers, as well as inhibit the oxidative degradation reaction and improve the oxidative stability of the fiber. The oxidation resistance mechanism of composite fibers was also proposed.
研究领域:
材料科学
·
化学工程
✓ 已验证
DOI
高影响因子
DESALINATION
·
2025
·
IF 9.8
Maliang Zhang,Huixin Lu,Yongyang Yin,Xiaotian Wang,Xi Du,Zhenhuan Li,Bowen Cheng
Due to their high porosity, many scholars have utilized two-dimensional (2D) materials for molecular separation. However, they need stability by relying only on the interactions between the 2D materials. Meanwhile, to promote the application of membrane separation technology in salt-containing printing and dyeing wastewater treatment, here we prepared a lamellar selective-layer crosslinked Cu-TCPP loose nanofiltration membrane. This membrane consists of a polyphenylene sulfide membrane as a substrate, which is loaded by tannic acid-modified and auxiliary-dispersed Cu-TCPP and stabilized by crosslinking by TMC. The crosslinking structure of polyester plays a critical role in the crosslinking and stabilization of the interlayer structure of two-dimensional nanosheets, and the retention rate of RhB dye can reach 99.8 %, with a lower retention rate for monovalent salt NaCl (<10 %) and divalent salt (<20 %). The original pore structure is also retained, and the maximum permeation flux could reach 27 L m −2 h −1 bar −1 . It possesses a high separation factor (α > 380) for NaCl/RhB mixed solution. In addition, the presence of a crosslinked structure gives the membrane better acid resistance, and it still has high selectivity for 16 h of continuous operation, achieving >98 % for methylene blue dye. This study provides a novel strategy to address nanosheet stability with potential applications in efficient salt/dye separation.
研究领域:
材料科学
·
环境工程
✓ 已验证
产品关联
DOI
高影响因子
DESALINATION
·
2019
·
IF 6.035
Yuan Gao,Kunmei Su,Xiaotian Wang,Maliang Zhang,Zhenhuan Li,Kang Jia
A novel layer consisting of nano graphene oxide (NGO) sheets was created with disordered arrangement and dual-channel structures on modified Polyphenylene sulfide (PPS) support surface. Polyamide (PA) and Piperazine (PIP) were used to cross-link and fasten the NGO layer, constructing water molecule transport channels. Meanwhile, the interlayer spacing of NGO and transport capacity of polyamide permeation channels could be changed by adjusting PIP content, thereby a large number of small-sized vacancy were formed as water molecular transport channels and played a role in intercepting small molecules and metal salts. Physicochemical structure and application performance of the composite membranes were analyzed using various testing methods, showing that the introduction of polyamide greatly increased water flux and metal salts rejection rate. In particular, M-3 membrane with the best performance was achieved with salt rejections of 48.24%, 92.14%, 92.93% and 91.23% for NaCl, CuSO 4 , ZnSO 4 and AlCl 3 , and a water flux of 40.80 LMH at 0.6 MPa.
研究领域:
材料科学
·
环境工程
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）