{"title":"New porous adsorbents based on natural polymers for treatment of motor oil contaminated wastewaters","authors":"Iuliana Spiridon, Irina Apostol, Maria Valentina Dinu, Narcis Anghel, Florica Doroftei","doi":"10.1002/pol.20240280","DOIUrl":"10.1002/pol.20240280","url":null,"abstract":"<p>This study aims to develop efficient adsorptive materials for retaining used 5w40 motor oil using xanthan (XG), xanthan esterified with acrylic acid (XGAC), Lignoboost lignin (LB), and LB esterified with oleic and stearic acids. The adsorption capacities of these materials were systematically evaluated, revealing a hierarchical efficacy with XG exhibiting the highest performance (60.16 g/g), followed by XGAC/LB (59.92 g/g) and XGAC (55.79 g/g). These capacities were correlated with the materials' surface area and morphology. Additionally, accelerated weathering studies assessed the degradation process of the adsorptive materials over time, revealing that all of them undergo significant structural changes, which suggests potential pathways for environmentally friendly disposal. Kinetic studies indicated that the experimental data fit well with the pseudo-second-order (PSO) model. The high correlation coefficient values for the PSO model (0.9318–0.9998) confirmed its suitability for describing the kinetics of oil sorption. FTIR spectra of the used motor oil-loaded materials confirmed the physical nature of the adsorption process, involving interactions such as hydrogen bonding, van der Waals forces, and π–π interactions. SEM analysis demonstrated that materials with larger pore sizes showed less efficient oil adsorption despite having high porosity, highlighting the importance of optimal pore size distribution for effective adsorption.</p>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"62 23","pages":"5411-5423"},"PeriodicalIF":3.9,"publicationDate":"2024-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142223451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Le Ji, Yuran Pan, Zheng Cao, Ruotong Wang, Haicun Yang, Junfeng Cheng, Chunlin Liu, Xiaowang Lu, Louis C. P. M. de Smet
{"title":"Facile preparation of graphene oxide/Poly (N-Isopropylacrylamide-co-acrylic acid) composite thin film and its quartz crystal microbalance humidity sensing property","authors":"Le Ji, Yuran Pan, Zheng Cao, Ruotong Wang, Haicun Yang, Junfeng Cheng, Chunlin Liu, Xiaowang Lu, Louis C. P. M. de Smet","doi":"10.1002/pol.20240504","DOIUrl":"10.1002/pol.20240504","url":null,"abstract":"<p>The composite microgels were synthesized from <i>N</i>-Isopropylacrylamide (NIPAM) and acrylic acid (AA) monomers in the presence of graphene oxide (GO) using an in situ radical copolymerization method. The successful preparation of these composite microgels was investigated through Fourier transform infrared spectroscopy (FTIR), ultraviolet visible absorption spectroscopy (UV–vis), and Raman spectroscopy. Due to the hydrophilic properties of GO and the microgels containing oxygenated groups (<span></span>OH, <span></span>COOH, and <span></span>CONH<sub>2</sub>), quartz crystal microbalance (QCM) sensors can be fabricated by spraying the GO/P(NIPAM<i>-co-</i>AA) dispersion onto QCM sensors as sensitive coating materials. The results indicate a notable enhancement in the performance of GO/P(NIPAM<i>-co-</i>AA) modified QCM humidity sensor, compared to QCM sensors modified with either GO or P(NIPAM<i>-co-</i>AA) microgels alone. This improvement is mainly evidenced by higher sensitivity and reduced moisture hysteresis. The humidity sensing mechanism is based on the combined effect of GO and P(NIPAM<i>-co-</i>AA) microgels, which synergistically enhance the sensor's performance. Additionally, the results from water contact angle measurements, laser scanning confocal microscopy (LSCM), and scanning electron microscope (SEM) show that GO/P(NIPAM<i>-co-</i>AA) exhibits greater roughness and stronger hydrophilicity than either GO or P(NIPAM<i>-co-</i>AA) microgels alone. These properties make GO/P(NIPAM<i>-co-</i>AA) an effective moisture-sensitive material for QCM sensors.</p>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"62 23","pages":"5398-5410"},"PeriodicalIF":3.9,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142177488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The phase transition behavior of polybutene in partial melting/polybutene/polypropylene","authors":"Enci Zhu, Ruosong Hao, Zhipeng Liu, Weixuan Shi, Tong Wu, Shicheng Zhao","doi":"10.1002/pol.20240578","DOIUrl":"10.1002/pol.20240578","url":null,"abstract":"<p>Polybutene (PB) is a typical polymer with various crystal forms: I, II, III, and I′. Among them, the mechanical properties of Form I PB is better but only Form II crystal can be obtained from the melt due to the kinetic advantage and then transform to Form I slowly. While the slow phase transition rate restricts its application. Partial melting is applied to accelerate the phase transition, which was studied by Flash DSC. The results indicated that the phase transition behavior during partial melting shows dependence on the isothermal crystallization temperature and 70 °C is optimal, which can reduce the phase transition time from 20 h to 200 s. As the crystallization temperature determined, stepwise crystallization was used to accelerate the phase transition. The influence of nucleating temperature and time was investigated and the results indicated that 0 °C and 2 s are the best temperature and time, respectively. With stepwise crystallization, the phase transition time was further reduced to 50 s. Moreover, stepwise crystallization can increase the content of Form I crystal from 80.0% to 98.2%. The mechanism of phase transition during partial melting was proposed according to the results, which can supplement the existing phase transition mechanism.</p>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"62 23","pages":"5372-5383"},"PeriodicalIF":3.9,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142223445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Olivia J. Armendarez, Grace C. Parizek, Ruth J. Augustine, Evan J. Silver, Tristan A. Kaz, Kaylee A. Campbell, Isabella P. Diaz, Shobha Mantripragada, Robert D. Geil, Sadie M. Flagg, Brian H. Augustine, Pamela M. Lundin
{"title":"Preparation of poly(3-hexylthiophene) conjugated polymer brush films from amine-terminated surfaces","authors":"Olivia J. Armendarez, Grace C. Parizek, Ruth J. Augustine, Evan J. Silver, Tristan A. Kaz, Kaylee A. Campbell, Isabella P. Diaz, Shobha Mantripragada, Robert D. Geil, Sadie M. Flagg, Brian H. Augustine, Pamela M. Lundin","doi":"10.1002/pol.20240377","DOIUrl":"10.1002/pol.20240377","url":null,"abstract":"<p>Conjugated polymer brush (CPB) films are more robust and exhibit more vertically aligned polymer chains than their spun-cast analogs. We prepare CPB films of poly(3-hexylthiophene) (P3HT) by coupling an amine-terminated surface (ATS) formed from (3-aminopropyl)triethoxysilane (APTES) on Si/SiO<sub>2</sub> to 4-bromobenzoic acid using standard, inexpensive peptide coupling reagents. The resulting terminal bromobenzene is reacted with Pd(P<i>t</i>Bu<sub>3</sub>)<sub>2</sub> and immersed in the monomer solution. X-ray photoelectron spectroscopy, spectroscopic ellipsometry and static water contact angle measurements confirm the surface chemistry at each stage of P3HT CPB preparation. Atomic force microscopy(AFM) and UV–vis spectrophotometry indicate that the CPB films prepared by this method exhibit similar morphology and optical properties to those produced from other methods of poly(3-alkylthiophene) CPB film preparation. Variations of the standard approach, such as using a pre-synthesized silane counterpart or with (11-aminoundecyl)triethoxysilane, show comparable film morphologies by AFM. This method is used to produce the first CPB film of poly(3-dodecylthiophene), showing its utility for exploring CPB films of more sterically demanding polymers. Peptide coupling is used to prepare an analogous functionalized thiol for initiating P3HT CPB film growth from Au surfaces, and microcontact printing with this thiol allows preparation of the first patterned CPB film of P3HT.</p>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"62 23","pages":"5384-5397"},"PeriodicalIF":3.9,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pol.20240377","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142177502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"One-step electrosynthesis of a nanocomposite of functionalized graphene and polypyrrole for enhanced room-temperature nitrogen oxide sensing","authors":"Djamil Guettiche, Ahmed Mekki, Catherine Debiemme-Chouvy, Nathalie Simon, Zakaria Bekkar Djelloul Sayah, Fatma-Zohra Tighilt, Sabri Touijine, Omar Mansri","doi":"10.1002/pol.20240269","DOIUrl":"10.1002/pol.20240269","url":null,"abstract":"<p>Due to the numerous challenges related to selectivity, sensitivity, stability, and operation at standard room temperature, improving the environmental detection of nitrogen oxide presents a considerable defy in the development of novel promising structures in chemical detection. In this study, a new series of p-type heterojunction nanocomposites based on electrodeposited polypyrrole (PPy) doped with n-dodecylbenzene sulphonate and either reduced graphene oxide (PPy/RedGO) or reduced graphene oxide functionalized using aryl 4-carboxybenzene diazonium salt (PPy/RedGO-arylCOOH) was synthetized using a one-step chronoamperometric process. The influence of functionalized graphene incorporation on the structural, morphological, and sensory performances of the PPy film was investigated. Its sensitivity and reactivity to NO<sub>2</sub> sensing were studied. The structural data confirms that PPy/RedGO-arylCOOH film is a homogeneous nanocomposite with improved crystalline ordering. It shows optimal NO<sub>2</sub> sensing properties compared to the PPy/RedGO composite in terms of sensitivity (0.87 ppm<sup>−1</sup>), detection limit (2 ppm), response time of 29 s, recovery time of 40 s and reproducibility at room temperature.</p>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"62 23","pages":"5317-5331"},"PeriodicalIF":3.9,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pol.20240269","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142177503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Impact of photochemical aging on high-performance fabrics used in firefighters' protective clothing","authors":"Md. Saiful Hoque, Patricia I. Dolez","doi":"10.1002/pol.20240104","DOIUrl":"10.1002/pol.20240104","url":null,"abstract":"<p>High-performance fabrics used in the outer shell of firefighters' protective clothing protect the wearer from severe conditions. These fabrics are exposed to ultraviolet (UV) radiation during service and storage, which may eventually reduce their performance. This study explored the effect of accelerated photochemical aging on three fabrics used in the outer shell of firefighters' protective clothing; they corresponded to aramid copolymer/polybenzoxazole, para-aramid/meta-aramid, and para-aramid/polybenzimidazole fiber blends. The fabric specimens were subjected to irradiances between 0.35 and 1.35 W/m<sup>2</sup> at temperatures between 40°C and 80°C for up to 600 hours. They were tested for breaking force and apparent water contact angle. Complementary microscopy, chemical, and physicochemical analysis were also performed. The UV-aged para-aramid/polybenzimidazole fabric demonstrated a better breaking force retention compared to the aramid copolymer/polybenzoxazole and para-aramid/meta-aramid fabrics. The considerable reduction in strength observed in the two latter fabrics was associated with fiber breakage. Furthermore, the apparent water contact angle significantly decreased following UV exposure, indicating the potential degradation of the fabric surface finish. On the other hand, no significant changes in the crystallinity index were detected whereas potential decreases in the peak intensity of some chemical functional groups were observed after photochemical aging. These results highlight the significance of material selection in enhancing the long-term performance of fire-protective fabrics and offer insightful information on the photochemical aging of high-performance fabrics.</p>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"62 23","pages":"5347-5371"},"PeriodicalIF":3.9,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pol.20240104","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142177504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yankun Li, Wenbo Luan, Peichen Yuan, Guanzhou Zhen, An Xing, Haitao Wu, Longhai Guo, Xiaoyu Li, Jun Ye, Teng Qiu
{"title":"The effect of copolymerization of Hou Po-bisphenol units on cationic waterborne polyurethane","authors":"Yankun Li, Wenbo Luan, Peichen Yuan, Guanzhou Zhen, An Xing, Haitao Wu, Longhai Guo, Xiaoyu Li, Jun Ye, Teng Qiu","doi":"10.1002/pol.20240435","DOIUrl":"10.1002/pol.20240435","url":null,"abstract":"<p>Bio-based bisphenols from <i>Hou Po</i> (<i>Cortex Magnoliae Officinalis,</i> one of the popularly used herb in traditional Chinese medicine) was applied as a new kind of the chain extender for the synthesis of cationic waterborne polyurethane (CWPU). Since the representative <i>Hou Po</i>-bisphenols include magnolol (MAG), honokiol (HON) and <i>Magnolia officinalis</i> extract (MPE), to explore their subtle structure effects and distinguish them from their petrochemical analogs of bisphenol A (BPA) and 2,2′-biphenol (OBP), the CWPU modified by different bisphenols were systematically characterized and compared. It has been found that the copolymerization of MAG onto the backbone of CWPU can give out superior film toughness, damping factors and self-healing efficiency (>90%). The elastic film recovered from the cut-off damage exhibited the tensile strength of 41.5 MPa and the elongation at break of 940%. On the contrary, MPE modified CWPU exhibited remarkable reinforcement effect on the CWPU films, and the tensile strength reached ~50 MPa but with the sacrificed reversibility. The enhanced thermal stability and surface hydrophobicity were also pronounced on the MPE modified CWPU. The very different roles of the <i>Hou Po-</i>bisphenols are in sharply distinctive from their petrochemical analogs, providing new insights into the design of biologically sourced materials.</p>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"62 23","pages":"5332-5346"},"PeriodicalIF":3.9,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142223446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kalpana Rathore, B. Gorbel, Kaushal Shakya, K. Thejaswi, Sandip Das, Vivek Verma
{"title":"Investigation of synergistic effects of polyols and cellulose-based reinforcements on kappa-carrageenan films","authors":"Kalpana Rathore, B. Gorbel, Kaushal Shakya, K. Thejaswi, Sandip Das, Vivek Verma","doi":"10.1002/pol.20240478","DOIUrl":"10.1002/pol.20240478","url":null,"abstract":"<p>This study investigates the synergistic effects of the incorporation of various plasticizers and reinforcing agents on the characteristics of κ-carrageenan (kC) film. Different plasticizers, including polyols and glycols, were used to improve elongation at break, whereas nanoclay, urea and varied forms of cellulose were used as reinforcing agents. The physicochemical and morphological properties of kappa-carrageenan films plasticized and reinforced with various additives were quantified for their swelling behavior, mechanical strength, chemical composition, and structural features. Among the plasticizers used in the study, glycerol (30% with respect to kC) plasticized films showed better elongation properties (48.7%) as compared to the other plasticizers. In the reinforced carrageenan films, without plasticizer, oxidized bacterial cellulose demonstrated the best mechanical strength of 89.5 MPa as compared to other reinforcement agents. Moreover, 5% bacterial cellulose modified carrageenan film significantly maintained the mechanical properties (58.3 MPa) of the kC films plasticized with 30% glycerol, providing 15% elongation. The addition of glycerol to the reinforced films also influenced the water absorption and water vapor transmission rates of the polymer matrix. In addition, additives like halloysite nanoclay in plasticized carrageenan films demonstrated 16% improved barrier properties. This comprehensive analysis of different additives in κ-carrageenan films broadens the potential for food packaging and biomedical applications.</p>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"62 23","pages":"5301-5316"},"PeriodicalIF":3.9,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142177505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Superhydrophilic-underwater superoleophobic polyvinyl alcohol membranes for oily water treatment","authors":"Arpita Padhan, Vickramjeet Singh","doi":"10.1002/pol.20240267","DOIUrl":"10.1002/pol.20240267","url":null,"abstract":"<p>Polyvinyl alcohol (PVA) and potato starch-based porous hydrogels have been fabricated and studied for their wettability. The starting material was crosslinked by glutaraldehyde performed via co-polymerization reaction at room temperature and low temperature (freeze–thaw). The gels were characterized by Fourier transform infrared (FT-IR), field emission scanning electron microscope (FE-SEM), thermogravimetric (TG), and powder X-ray diffraction (PXRD) analysis. The wetting studies of the gels were evaluated at ambient and submerged conditions by considering both oil and water drops as probe liquids. The gels tend to absorb oil and water in air, however, water-wet gels demonstrated a very high oil contact angle (>150°). The gels demonstrated superoleophobicity, and the underwater oil CA >172° as the concentration (wt%) of PVA was increased in the gels. Overall, the freeze–thaw gels demonstrated higher underwater oil CA, however, both (room temperature and freeze–thaw fabricated) gels demonstrated similar affinity for under-oil–water absorption and separation. The hydrogel can retain water easily and thus remove water (even dye dissolved in water) with high separation efficiency and recyclability.</p>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"62 23","pages":"5289-5300"},"PeriodicalIF":3.9,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142177506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Cover Image, Volume 62, Issue 17","authors":"Dongjoo Lee, Hanqing Wang, Rafael Verduzco","doi":"10.1002/pola.31291","DOIUrl":"https://doi.org/10.1002/pola.31291","url":null,"abstract":"<p>The cover image is based on the Article <i>Progress in photocontrolled radical polymerization for the synthesis of nonlinear polymer architectures</i> by Dongjoo Lee et al., https://doi.org/10.1002/pol.20230889.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"62 17","pages":"i"},"PeriodicalIF":3.9,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pola.31291","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142117935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}