Article
Agricultural Engineering
M. Fakhrulrazi Nawawi, Noordini M. Salleh, Vannajan Sanghiran Lee, Sit-Foon Cheng
Summary: This paper investigates the liquid crystal properties of a new homologous series derived from palm caprylic acid with different terminal substituents. The synthesized compounds were characterized using NMR, FT-IR, and CHN elemental analysis, while the mesomorphic behaviors were evaluated with POM and DSC. The insertion of polar substituents at the sixth position on the benzothiazole ring resulted in a wide nematogenic temperature range and high thermal stability. These findings contribute to future structure design of palm-based liquid crystals and the utilization of palm oil as a renewable and cost-effective alternative resource.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Polymer Science
Xin Zhang, Jiazi Wu, Zhaolu Qin, Ye-Tang Pan, Zhishuai Geng, Xiaolu Wu, Wenchao Zhang, Rongjie Yang
Summary: This study presents the preparation of an intrinsic flame-retardant vinyl ester resin and its composite with excellent comprehensive properties through structural design. Compared to the control, the material exhibits better performance in flame retardancy and low-smoke applications, showing great potential as a substitute for petroleum-based vinyl ester resin.
POLYMER DEGRADATION AND STABILITY
(2023)
Article
Engineering, Environmental
Yuan-Zheng Zhao, Yan Chu, Ying-Jun Xu, Ping Zhu, Yu-Zhong Wang
Summary: In this study, a liquid phosphorus-containing 1-vinylimidazole salt (VC) was synthesized and used as a flame-retardant crosslinking agent for vinyl ester resins (VER). The addition of 15% VC significantly improved the flame retardancy of the resin, achieving UL 94 V0 rating and a limiting oxygen index of 32.7%. VC15/VER also showed reduced heat release rate, total heat release rate, and total smoke release rate compared to VER. It exhibited good thermal stability and high mechanical performance comparable to VER, making it suitable for various applications such as coatings, composites, and laminates.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Food Science & Technology
Ibrahim A. Bakry, Lan Yang, Mohamed A. Farag, Sameh A. Korma, Ibrahim Khalifa, Ilaria Cacciotti, Noha Ziedan, Jun Jin, Qingzhe Jin, Wei Wei, Xingguo Wang
Summary: Camel milk is gaining attention for its health-promoting properties and unique nutritional composition, making it a suitable alternative for individuals allergic to cow's milk. Future studies are expected to focus on a better understanding of camel milk fat, potentially leading to the development of new products with significant health benefits.
Article
Chemistry, Physical
Aline Nascimento Vasconcelos, Marcus Vinicius Gomes Paixao, Nivia do Nascimento Marques, Bruna Luiza Batista de Lima, Elessandre Alves de Sousa, Rosangela de Carvalho Balaban
Summary: This paper mainly focuses on the analysis of chemical modification of a dimer of fat acid and its impact on synthetic drilling fluids. The study shows that the synthesized fatty amide can stabilize emulsion systems and exhibit minimal viscosity sensitivity within a certain temperature range, resulting in flat-rheology synthetic drilling fluids.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Polymer Science
Alexey V. Roenko, Roman Y. Nikiforov, Maria L. Gringolts, Nikolay A. Belov, Yulia I. Denisova, Georgiy A. Shandryuk, Galina N. Bondarenko, Yaroslav V. Kudryavtsev, Eugene S. Finkelshtein
Summary: Commercial metathesis polynorbornene is used for high-damping coatings and materials. Post-modification of this polymer can improve its adhesive, gas barrier, and other properties. The study shows that post-modification significantly affects the thermal, gas separation, and mechanical properties of the copolymers.
Article
Food Science & Technology
Xin-Jia Tan, Hai-Mei Li, Qing-Xia Peng, Hua Zhou, Yong-Sheng Chen, Yu-Yun Lu, Ri-An Yan
Summary: The study synthesized ten lutein esters through catalyzing acylation reaction, and found that acylation improved the antioxidant capacity and thermal stability of lutein, expanding its potential applications in various industries.
JOURNAL OF FOOD SCIENCE
(2021)
Article
Polymer Science
Patrick Steinbauer, Robert Liska, Stefan Baudis
Summary: Vinyl ester-based monomers have shown promise as alternatives to (meth)acrylates in radical photopolymerization due to their lower irritancy and cytotoxicity. Their increasing importance is attributed to cost-efficient synthetic production methods and improved material properties, particularly when copolymerized with other monomers. Studies on the copolymerization behavior of vinyl ester with norbornene, allyl ether and allyl ester have provided valuable insights into the polymer network of these copolymers.
POLYMER INTERNATIONAL
(2022)
Article
Chemistry, Applied
Paulina Varguez-Catzim, Wilberth Herrera-Kao, Rita Sulub-Sulub, Humberto Vazquez-Torres, Moises Alcaraz Calderon, Manuel Aguilar-Vega, Maria Ortencia Gonzalez-Diaz
Summary: Random copolymers of PVA and PAMPS were synthesized through free radical polymerization in water followed by alkaline hydrolysis in methanol. The copolymers exhibited higher thermal stabilities and well-correlated ion exchange capacities with the molar composition of PAMPS. They showed good solubility in water and had the ability to form dense and porous membranes, making them suitable for various polymeric membrane applications.
REACTIVE & FUNCTIONAL POLYMERS
(2023)
Article
Food Science & Technology
Nur Aainaa Syahirah Ramli, Nur Azmina Roslan, Fadzlina Abdullah, Razmah Ghazali, Raznim Arni Abd Razak, Azmil Haizam Ahmad Tarmizi, Bahriah Bilal
Summary: This study modified the AOCS Official Method and established a method for the quantification of 2-MCPDE, 3-MCPDE, and GE in commercial fatty acids. The modified sample preparation step improved the extraction process by the addition of tetrahydrofuran. The method demonstrated good linearity, low limit of detection, satisfactory recovery, and low variation.
Article
Polymer Science
Soheila Ghasemi, Milad Ghezelsofloo, Mahsa Naeimi, Bahman Tamami, Hamed Allahyari
Summary: This paper reports the production of a mixture of urethane modified vinyl ester resin using the non-isocyanate polyurethane method without phosgene. The synthesized resin demonstrated improved mechanical properties through various reactions and curing steps, offering potential applications in industrial chemistry.
POLYMER INTERNATIONAL
(2022)
Article
Polymer Science
Sae Kiyohara, Narumi Miyasako, Yoshiya Ota, Shin-ichi Matsuoka, Masato Suzuki
Summary: In this study, new thermally and chemically stable cyclic olefin polymers (COPs) with random, gradient, and block sequences were successfully prepared through different polymerization methods. The properties of the resulting COPs were analyzed, and it was found that COPs obtained under different reaction conditions exhibited different thermal properties and crystallinity.
Article
Biotechnology & Applied Microbiology
Ryan A. Scheel, Truong Ho, Yuki Kageyama, Jessica Masisak, Seamus McKenney, Benjamin R. Lundgren, Christopher T. Nomura
Summary: This study focused on the development and optimization of a fed-batch fermentation process in a stirred tank reactor for the biosynthesis of medium chain-length poly(3-hydroxyalkanoates) [PHA] polymers. By iteratively optimizing the semi-defined media composition and glucose feed rate, decanoic acid was successfully converted to poly(3-hydroxydecanoate) [PHD] at high yield, showcasing the potential of this method for controlling the production of PHA copolymers with specific compositions.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Article
Chemistry, Applied
Luz Quispe-Sanchez, Aline C. Caetano, Dani Baca, Manuel Oliva-Cruz, Jorge R. Diaz-Valderrama, Segundo G. Chavez
Summary: This study evaluated the fatty acid profile and the physicochemical and rheological properties of cocoa mass obtained from twenty cacao accessions from the department of Amazonas, Peru. The results showed variations in fatty acid composition and physical properties among different cacao accessions. These findings provide important information for industrial chocolate production.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2023)
Article
Food Science & Technology
Jinyue Zheng, Di Sun, Xingxia Li, Dengyong Liu, Chunqiang Li, Yan Zheng, Xiqing Yue, Jun-Hua Shao
Summary: This study investigated the effects of chain length and saturation of fatty acids on the emulsification properties of pork myofibrillar protein. Results showed that fat with higher contents of neutral fatty acids, long-chain fatty acids, and polyunsaturated fatty acids contributed to the stability of the emulsion system. Conversely, medium chain fatty acids, monounsaturated fatty acids, and saturated fatty acids were not conducive to emulsion stability.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Applied
Heena, Komal Sharma, Kamlesh Kumar, Bhargab Das, Raj Kumar
Summary: In this study, holographic films were prepared using an automatic film applicator, and their performance was compared with films prepared by other methods. The results showed that holographic films prepared with the automatic film applicator had higher diffraction efficiency and more uniform thickness, making them suitable for holographic applications.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Athira S. Vijayan, Antony Joseph, Abey Joseph, T. S. Abhijith, Baiju G. Nair, V. Sajith
Summary: Novel polydopamine functionalized ceria-zirconia nanoparticles filled water-borne epoxy nanocomposite coatings were developed to prevent microbial-induced corrosion of mild steel. The coatings exhibited exceptional anti-biofouling and anti-biocorrosion properties due to the synergistic effect of PDA functionalization and zirconium incorporation, providing significant enhancement in charge transfer resistance and coating resistance.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Yudan Yi, Qingyong Sun, Qijun Li, Bi Shi, Ya-nan Wang
Summary: Producing metal-free leather is an effective approach to eliminate Cr pollution and achieve sustainable development of the leather industry. However, current metal-free tanning technologies have limitations in terms of water sorption and charge properties. By using cationic amphiphilic acrylic copolymers (PSD) as retanning agents, the properties of metal-free leather can be significantly improved, including enhanced hydrophobicity, better dye absorption, and excellent filling effect.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Yunqing Xia, Lifen Tong, Xiaofang Feng, Hubing Xiang, Yi He, Xiaobo Liu
Summary: By incorporating functionalized nanofillers, such as polydopamine-modified graphitic carbon nitride and cerium oxide, into epoxy coatings, their corrosion resistance can be improved and their protective period can be extended.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Weineng Lu, Guanhao Ma, Jinqing Qu
Summary: Four novel bis-chalcone-based carbazole derivative photoinitiators were designed and synthesized in this study. Their maximum absorption wavelengths were determined and found to exhibit high molar extinction coefficients. Furthermore, a three-component photoinitiation system including bis-chalcone/iodonium/amine was successfully used to trigger the rapid and efficient photopolymerization of acrylates. The photoinitiators also showed good photo bleaching and biocompatibility, making them suitable for applications such as 3D printing and deep coating curing.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Xingnan Zhou, Shixian Zhang, Yiheng Song, Hongmei Qin, Chuanxi Xiong, Shan Wang, Quanling Yang, Delong Xie, Rong Fan, Dan Chen
Summary: In this study, eco-friendly 3-amino-1,2,4-triazole (ATA) molecules were used to modify graphene oxide (GO) nanosheets for improving the anti-corrosion performance of water-borne epoxy (WEP) coating. The results show that ATA modification enhances the dispersion of GO in the polymer coating and significantly improves the barrier effect.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Hao Fu, Wei Bing, Xushibojie Liu
Summary: In this study, temperature-sensitive coatings with bacteria-killing and bacteria-releasing functions were prepared on silicone rubber surfaces by UV polymerization and UV photocatalysis. The modified surface exhibited strong and persistent bactericidal effect, inhibiting the formation of bacterial biofilm. Moreover, the smart surface can effectively release bacteria and resist bacterial adhesion through temperature changes. The modified silicone rubber surface showed good biocompatibility without cytotoxicity.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Lee Eyann, Zulkifli Mohamad Ariff, Mohamad Danial Shafiq, Raa Khimi Shuib, Muhamad Sharan Musa
Summary: By investigating the effect of MAA addition on the properties of the WEA core-shell emulsion, film and coating, it was found that MAA can significantly impact the structure and performance of the coatings, and has great potential for applications.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Jinkyu Choi, Kyung Hoon Min, Byeong Seok Kim, Sung-Hyeon Baeck, Sang Eun Shim, Yingjie Qian
Summary: A novel phosphorus-based flame retardant was designed by incorporating aryl groups, which effectively improved the flame retardancy and mechanical properties of polyurethanes.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Saowaluk Taechutrakul, Thananchai Piroonpan, Beata Paulina Rurarz, Slawomir Kadlubowski, Piotr Ulanski, Wanvimol Pasanphan
Summary: This study proposes the use of nanogels to disperse and stabilize water-insoluble organic pigment particles in water-based inks. The nanogels were prepared using electron beam-induced chemical reactions and showed good dispersion and stabilization properties. The use of nanogels in ink formulation improved the ink's hiding power, lightfastness, and resistance properties.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Shan Wan, Huikai Chen, Bokai Liao, Xingpeng Guo
Summary: In this study, 2-amino-5 mercapto-1,3,4-thiadiazole (ATT) was used as an intercalating agent to prepare ATT/BNNS nanofillers via a liquid-phase assisted ultrasound method. TEM results showed that ATT successfully exfoliated BNNS and reduced agglomeration. The WEP ATT/BNNS coating exhibited the best protective performance under saline immersion due to the combined action of ATT inhibitor and BNNS physical barrier.
PROGRESS IN ORGANIC COATINGS
(2024)
Review
Chemistry, Applied
Lijie Yin, Bo Zhang, Ming Tian, Nanying Ning, Wencai Wang
Summary: This paper reviews the recent progress in the synthesis of bio-based waterborne polyurethanes (BWPU) and focuses on its applications in coatings, adhesives, and antimicrobials. BWPU has attracted much attention due to its good physical and chemical properties, no VOCs emissions, exploitation of renewable substances, and structural design-ability.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Yuyang Zhou, Yang Chen, Xinming Cao, Haodong Fu, Yun Li, Yonghui Zhang, Jun Ma, Xin Liu
Summary: This study proposes a strategy to fabricate a high-strength double-layer superhydrophobic actuator, which consists of a metal/glass-based superhydrophobic substrate and a polymer superhydrophobic coating. The coating has high adhesive strength, self-cleaning, anti-ultraviolet irradiation, and anti-stripping properties, along with photothermal and magnetic response capabilities, enabling its application in various fields.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Fengbiao Chen, Fei Gao, Xinru Guo, Yu Chen, Xuelang Gao, Liang Shen
Summary: In this study, various covalent adaptable networks (CANs) were synthesized using multifunctional amines and compared with CANs prepared from primary and secondary amines. The results showed that the performance of CANs is closely related to the crosslinking density, and increasing the content of secondary amines improves the performance but weakens the dynamics.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Qian Zhang, Mengyi Shen, Xingcai Liu, Hao Fu, Wenbo Yang, Jinyuan Zhao, Jian Wang, Yaping Du, Chunjie Ma
Summary: Rare earth-containing corrosion inhibitors were successfully synthesized and added into epoxy coatings for the anti-corrosion of steel materials. The results showed that the coatings with rare earth elements had better anti-corrosion performance, and this difference in performance could be explained by the inherent properties of rare earth elements.
PROGRESS IN ORGANIC COATINGS
(2024)