Article
Polymer Science
Alessandra Monaco, Ben Drain, C. Remzi Becer
Summary: This study focuses on employing multi-detector gel permeation chromatography to analyze the structural features of core cross-linked star shaped polymers, and investigates how varying the arm length and core size of the star polymers can influence their structural properties and drug encapsulation capacity.
Article
Materials Science, Multidisciplinary
Sahin Demirci, Dawin Khiev, Mehmet Can, Mehtap Sahiner, Manas R. Biswal, Ramesh S. Ayyala, Nurettin Sahiner
Summary: The one-pot synthesis of poly(beta-cyclodextrin) (p(beta-CD)) micro/nanoparticles using different cross-linkers proved to have good physicochemical properties, including biocompatibility, blood compatibility, and sustained drug release capabilities.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Polymer Science
Jelena D. Jovanovic, Borivoj K. Adnadjevic
Summary: In this study, the kinetics of NIAM release from PAM xerogel/hydrogel under SMHC conditions were investigated, and it was found to follow a first-order chemical reaction kinetic model. The release rate constants ranged from 8.4 10(-3) s(-1) to 15.7 10(-3) s(-1) at different temperatures. The validity of the Arrhenius equation under SMHC conditions was confirmed, and higher kinetic and thermodynamic parameters were attributed to the formation of a specific activated complex.
Article
Polymer Science
Graham Hayes, Ben Drain, C. Remzi Becer
Summary: Poly(2-oxazoline)s are promising for biomedical applications, but limited synthetic approaches exist for star-shaped polymers. A novel bis-oxazoline cross-linker was developed via a fast thiol click reaction, allowing the preparation of well-controlled core cross-linked star polymers. The synthesized star-shaped polymers were characterized extensively and showed potential for encapsulation of dihydroxyanthroquinone.
Article
Polymer Science
Emese Pregi, David Kun, Andras Wacha, Bela Pukanszky
Summary: Ionomers with different degrees of neutralization were prepared from an ethylene-acrylic acid copolymer, with properties characterized through various analytical techniques. The main relaxing species in ionomers are methylene groups and copolymer segments, with clusters forming above a critical degree of neutralization. The mechanical properties are determined by the crystalline structure and cluster formation, which can increase strength and modulus while decreasing deformability.
EUROPEAN POLYMER JOURNAL
(2021)
Article
Polymer Science
Yi Wu, Bo Liu, Dongmei Cui
Summary: The ultrafast synthesis of core cross-linked star poly(p-methylstyrene) (s-PMS) with syndiotactic arms was achieved through a coupling reaction between the active species of metal-poly(p-methylstyrene) and the cross-linker of divinylbenzene (DVB). By controlling the molecular weight, DVB loading, and coupling time, narrowly distributed s-PMS with high yield was obtained. Compared to linear PMS, s-PMS with the same molecular weight has lower solution viscosity and smaller hydrodynamic radius.
Article
Chemistry, Physical
Yi-Tong Han, Kaoru Tada, Kunitoyo Osawa, Hirohisa Uchida, Kazuhiro Tamura
Summary: Surface modification of aramid fiber using acrylic acid in supercritical carbon dioxide was found to effectively improve its interfacial properties in reinforced composite applications while maintaining fiber strength.
JOURNAL OF SUPERCRITICAL FLUIDS
(2023)
Article
Nanoscience & Nanotechnology
Abu Zafar Al Munsur, Bon-Hyuk Goo, Youngkwang Kim, Oh Joong Kwon, Sae Yane Paek, So Young Lee, Hyoung-Juhn Kim, Tae-Hyun Kim
Summary: The semi-IPN membrane NPP-95, composed of Nafion, PAA, and PVA, exhibited excellent thermal, mechanical, and dimensional stability, as well as lower permeability and higher conductivity compared to re-Nafion. The membrane showed significantly improved water management and lower hydrogen crossover under actual fuel cell operating conditions. In both PEMFC and PEMWE applications, NPP-95 demonstrated higher current density and better performance than re-Nafion.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Polymer Science
Tomomichi Itoh, Minami Okuno, Yoshihiro Moriya, Hiroaki Shimomoto, Eiji Ihara
Summary: This study focused on using poly(acrylic acid) block copolymers as stabilizers to modify the surfaces of polymer particles during dispersion polymerization. Polystyrene-block-poly(acrylic acid) was found to have better control over particle size range and surface density compared to poly(acrylic acid) homopolymer. The impact of heterogeneity between the polymer species of the particle core and attached polystyrene or PMMA chains in the poly(acrylic acid) block copolymers was also investigated.
Article
Polymer Science
Maarten A. Mees, Thomas D. McAllister, Silvio Curia, Steven M. Howdle, Richard Hoogenboom
Summary: This study reports on a feasible method to introduce carbamate and fluorescent zwitterionic groups into linear polyethylenimine (L-PEI) by reacting with supercritical CO2, thus expanding the chemical toolbox of L-PEI and providing a new tool for the preparation of fluorescent L-PEI and PEtOx.
Article
Chemistry, Multidisciplinary
Nedah Alkattan, Noura Alasmael, Viko Ladelta, Niveen M. Khashab, Nikos Hadjichristidis
Summary: Poly(2-oxazoline)s (POxs) are synthesized using microwave-assisted cationic ring-opening polymerization (CROP). The resulting CCS POxs exhibit excellent biocompatibility and stealth properties, making them promising candidates for drug delivery applications. Loading the anti-cancer drug doxorubicin (DOX) into the CCS POxs enhances their cytotoxicity against HeLa cells.
NANOSCALE ADVANCES
(2023)
Article
Polymer Science
Hamid Reza Hedayati, Manounchehr Khorasani, Mostafa Ahmadi, Nicholas Ballard
Summary: In this study, well-defined and linear PVAc was synthesized using RAFT polymerization method, overcoming the difficulties in controlling molecular weight distribution during the hydrolysis of PVAc. This offers a potential route to the production of PVAc and PVA products with uniform properties.
Article
Engineering, Chemical
Carla Luciani, Kyu Yong Choi
Summary: This study presents a mathematical model and analysis for the continuous polymerization of partially neutralized acrylic acid. The copolymerization of acrylic acid and sodium acrylate in an aqueous medium is described using a detailed kinetic model. The operation of a continuous kneader reactor is theoretically investigated to predict various parameters such as temperature profile and monomer conversion. This model serves as a starting point for optimizing operating protocols and improving polymerization reactor designs.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Han Yu, Junjie Liu, Lin Zhao, Yonglin Liu, Lulu Gu, Lianxiang Feng, Yonggen Weng, Qingxu Duan, Baorong Duan, Jiale Qu
Summary: The suspension polymerization process was used to create acrylate resin microspheres for mesh coating technology. The synthesized microspheres had mesh numbers of 140-200 µm and particle sizes of 100 µm. The optimal reaction conditions for synthesis were determined to be a dispersant dosage of 30 g of calcium carbonate, a monomer ratio of 4:1, a reaction time of 1 h, an initiator dosage of 1.2 g of BPO, and a reaction temperature of approximately 75-80 °C, resulting in microspheres with a regular spherical shape and smooth surface.
FRONTIERS IN CHEMISTRY
(2023)
Article
Engineering, Environmental
S. A. D. A. Sumithraarachchi, B. D. K. K. Thilakarathna, Jayasundera Bandara
Summary: Investigation of special wetting materials for oil-water separation showed that enhanced superhydrophobic properties were achieved by cross-linking polystyrene with acrylic acid on TiO2 nanoparticles. The membranes fabricated demonstrated exceptional oil-water separation efficiencies and flux rates due to their excellent oil-wetting properties. It was confirmed that the oil-water separation efficiency, reusability, durability, and hydrophobicity of the membranes can be enhanced through appropriate fabrication methods.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Manufacturing
Mohammed H. Al-Saleh, Haya K. Al-Anid, Yazan A. Hussain
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2013)
Article
Computer Science, Interdisciplinary Applications
Yazan A. Hussain, Martin Jaeger
COMPUTER APPLICATIONS IN ENGINEERING EDUCATION
(2018)
Article
Engineering, Chemical
Yazan A. Hussain, Mohammed H. Al-Saleh, Suekainah S. Ar-Ratrout
Article
Engineering, Chemical
Yazan A. Hussain, Mohammed H. Al-Saleh
Article
Engineering, Chemical
Vito Carla, Yazan Hussain, Christine Grant, Giulio C. Sarti, Ruben G. Carbonell, Ferruccio Doghieri
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2009)
Article
Polymer Science
Hasan M. El Ghanem, Saa'di Abdul Jawad, Mohammed H. Al-Saleh, Yazan A. Hussain, Adnan S. Abu-Surrah
JOURNAL OF MACROMOLECULAR SCIENCE PART B-PHYSICS
(2014)
Article
Chemistry, Physical
Yazan A. Hussain, Christine S. Grant
JOURNAL OF SUPERCRITICAL FLUIDS
(2012)
Article
Physics, Condensed Matter
Hasan M. El Ghanem, Saa'di Abdul Jawad, Mohammed H. Al-Saleh, Yazan A. Hussain, Wael Salah
PHYSICA B-CONDENSED MATTER
(2013)
Article
Materials Science, Multidisciplinary
Mohammed H. Al-Saleh, Haya K. Al-Anid, Yazan A. Hussain
Article
Engineering, Chemical
Mohammad Al-Harahsheh, Yazan A. Hussain, Habis Al-Zoubi, Marwan Batiha, Esraa Hammouri
Article
Chemistry, Physical
Yazan Hussain, You-Ting Wu, Paa-Joe Ampaw, Christine S. Grant
JOURNAL OF SUPERCRITICAL FLUIDS
(2007)
Article
Polymer Science
V Carla, K Wang, Y Hussain, K Efimenko, J Genzer, C Grant, GC Sarti, RG Carbonell, F Doghieri
Article
Chemistry, Physical
Y Hussain, J Krim, C Grant
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2005)
