Article
Polymer Science
Roman Gunther, Walter R. Caseri, Christof Brandli
Summary: By treating the surfaces of polystyrene and polyamide 12 with O-2 plasma, the number of polar groups capable of hydrogen bond formation was increased, allowing for the joining of incompatible substrates without adhesive by pressing them together. The adhesion strength increased with bonding temperature and both substrates being plasma-treated, reaching adhesive strengths up to 5.5 +/- 1.7 MPa. Additionally, the joint substrates could be rapidly de-bonded on demand simply by treatment with water, and re-bonded by renewed plasma treatment.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Materials Science, Composites
L. Simonini, H. Mahmood, A. Dorigato, A. Pegoretti
Summary: This study aims to develop a PLA-based material with well-balanced stiffness and toughness to overcome the brittleness issue of commercial grade PLA. Composites were prepared by blending PLA with increasing contents of TPU and a fixed concentration of CFs, which were acid-treated to enhance the interfacial adhesion. The results showed improved tensile modulus, maximum stress, and elongation at break, demonstrating the effectiveness of this approach in preparing novel PLA-based materials with tailorable properties.
POLYMER COMPOSITES
(2023)
Article
Chemistry, Applied
Sinem Altinisik, Arzu Kortun, Ahmet Nazli, Ugur Cengiz, Sermet Koyuncu
Summary: UV-absorbing and non-fogging glass coatings with carbazole-based conjugated backbone and different lengths of hydrophilic PEG subunit (KP-PEG) were prepared. The polymers were characterized using FT-IR, 1H NMR, GPC, TGA and DSC. Transmittance and thin-film morphology were analyzed through UV-Vis absorption, AFM and TEM techniques. The wettability and antifogging properties of the coatings depended on the length of PEG in the polymer subunit, with water contact angle ranging from 60 degrees to 29 degrees. KP-PEG750 exhibited the highest roughness, optimum UV absorption, and lowest contact angle value, making it the best polymer thin film.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Polymer Science
Yan Song, Kaifeng Chen, Jingjing Wang, Yuan Liu, Jingzhi Yang, Dawei Zhang, Tao Qi, Guo Liang Li
Summary: This study reports the development of antibacterial self-healing anticorrosion coatings using a single polymer microcapsule system, which showed adaptive self-healing anticorrosion properties and efficient antibacterial function. The coatings have the potential to extend the service time of antibacterial self-healing materials in harsh environments.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Biochemistry & Molecular Biology
Xin Xu, Xumin Huang, Yixin Chang, Ye Yu, Jiacheng Zhao, Naatasha Isahak, Jisi Teng, Ruirui Quo, Hui Peng, Chun-Xia Zhao, Thomas P. Davis, Changkui Fu, Andrew K. Whittaker
Summary: This study presents the synthesis of a new class of antifouling polymer brushes based on highly hydrophilic sulfoxide polymers using surface-initiated PET-RAFT polymerization. The sulfoxide polymer brushes show outstanding antifouling properties in reducing nonspecific adsorption of proteins and cells, offering a general approach to engineering material surfaces with antifouling properties for biomedical applications.
Article
Chemistry, Physical
Narendra M. Adhikari, Aashish Tuladhar, Zheming Wang, James J. De Yoreo, Kevin M. Rosso
Summary: Interfaces between minerals and water are crucial in various geochemical and industrial processes, with MgO serving as a valuable model system due to its simple cubic structure. Vibrational sum frequency generation (vSFG) spectroscopy and water contact angle (WCA) measurements on MgO single crystal surfaces reveal detailed molecular interactions between water molecules and hydroxylated MgO surfaces. Despite their hydrophilicity, MgO surfaces exhibit unique non-H-bonded OH stretching vibrations and interactions with water that are not fully captured by traditional WCA measurements.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Polymer Science
Wentao Xu, Huaqiang Zhuang, Wenjie Chen, Wei Liu, Xiaoyang Pan
Summary: By using PAA-catalyzed in-situ COF synthesis method to apply COF-PAA modifier on PVDF membranes, the water flux, rejection rate, and antifouling properties can be improved, with a reduced leaching rate of PAA. The tight bonding of COF to PAA on the membrane surface contributes to enhanced stability and antifouling properties.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Chemistry, Physical
Kourosh Hasheminejad, Alberto Scacchi, Sousa Javan Nikkhah, Maria Sammalkorpi
Summary: Dissipative particle dynamics simulations were used to investigate the self-assembly of polymeric coatings. The results showed that the amphiphilic di-block co-polymer played a crucial role in controlling the assembly of the coating structure. Moreover, the polymer chemistry and the presence of excess stabilizer in the solution affected the quality of the coating.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
H. Mercado-Uribe, F. J. Guevara-Pantoja, W. Garcia-Munoz, J. S. Garcia-Maldonado, J. M. Mendez-Alcaraz, J. C. Ruiz-Suarez
Summary: This study analyzed the evolution of the exclusion zone based on a new interaction model, deriving simple analytical expressions and confirming the findings through experiments.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Shayna M. Rumrill, Vivek Agarwal, Kenneth K. S. Lau
Summary: By tuning reactor conditions, hydrophilic PHEMA was successfully deposited onto hydrophobic PTFE surfaces, transforming the water contact angle from approximately 110 degrees to 20 degrees.
Article
Materials Science, Multidisciplinary
Shujun Chen, Yang Liu, Siyi Chen, Guanglian Zhao, Yuanhui Wu
Summary: Novel triazole ultraviolet absorbers (2HBTF) with surface enrichment performance have effective protection for substrate surfaces from ultraviolet rays and environmentally friendly behavior. 2HBTF are mainly distributed in coating surfaces, showing hydrophobic films, which affect the anti-UV ageing property of coatings.
Article
Polymer Science
Mohsan Akhter, Ghulam Abbas Shah, Muhammad Bilal Khan Niazi, Saad Mir, Zaib Jahan, Muhammad Imtiaz Rashid
Summary: The study found that coating NPK with specific polymer combinations can achieve better slow release effects, increase plant nutrient uptake and soil nutrient levels, ultimately increasing maize yield.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Biochemical Research Methods
Ondrej Sedlacek, Tim Egghe, Patricia Khashayar, Martin Purino, Paula Lopes, Jan Vanfleteren, Nathalie De Geyter, Richard Hoogenboom
Summary: In this study, a novel reactive polymer linker was developed for gold surface functionalization, which offers a versatile polymer platform for various applications.
BIOCONJUGATE CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Ahmed I. A. Soliman, Cheng-Tse Wu, Toru Utsunomiya, Takashi Ichii, Hiroyuki Sugimura
Summary: In this study, micropatterns of APTMS were developed on hydrophilic and hydrophobic surfaces using 172 nm VUV photolithography. Different effects were observed on HD-SAM and UDA-SAM after VUV light irradiation, showing potential for controlling thicknesses and shapes of APTMS micropatterns.
Article
Chemistry, Multidisciplinary
Mohammad Istiaque Hossain, Brahim Aissa, Ayman Samara, Said A. Mansour, Cedric A. Broussillou, Veronica Bermudez Benito
Summary: This study reports the optical and morphological properties of silica thin layers deposited using reactive RF magnetron sputtering under different oxygen flow ratios. Numerical analysis and experimental validation showed that the silica thin films exhibit improved photovoltaic performance, making them promising for antireflection and self-cleaning coatings in various environments, including deserts.
