Results 131 to 140 of about 17,166 (245)

Recent progresses in the development of more reliable predictions of average molecular weights and chain-lenght distributions for complex irreversible non-linear polymerizations [PDF]

, 2005
Prediction of the structure of branched polymers is a challenging problem, for which only more or less clumsy mathematical solutions have been made available for a long time in the case of kinetically controlled polymerizations.
Costa, Mário Rui, Dias, Rolando
core  

Baseline Characteristics of Pristine Agricultural Pods Biochar

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT The valorization of agricultural pod wastes into biochar offers a sustainable pathway for waste management and the development of functional carbonaceous materials. This study comparatively evaluates biochars produced from cocoa, flamboyant, and locust bean pods using an autothermal top‐lit updraft gasifier with retort heating, a system ...
Bolaji Ibrahim Busari, Ghadah M. Al‐Senani, Stephen Sunday Emmanuel, Salhah D. Al‐Qahtani, Ebuka Chizitere Emenike, Kingsley O. Iwuozor, Abel U. Egbemhenghe, Rafiu Olasunkanmi Yusuf, Adewale George Adeniyi   +8 more
wiley   +1 more source

Innovative Approach to Hydrogen Purification: A Review on the Role of Metal Hydrides

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Metal hydrides, renowned for their unique hydrogen bonding capabilities, have emerged as pivotal materials in the energy sector, particularly for hydrogen storage and purification applications. Their ability to store hydrogen reversibly under moderate conditions has positioned them at the forefront in hydrogen‐based energy systems. This review
T. Mohammed Faheem, Vinod Kumar Sharma, A. Shaija, Bhaskar Das, Ranjith Krishna Pai   +4 more
wiley   +1 more source

Polymer‐Crosslinking System‐Filler Interactions in Polychloroprene Adhesives: Experimental and Molecular Modeling Insights

Journal of Applied Polymer Science, EarlyView.
The use of polychloroprene is common in elastomeric adhesives. This study highlights the possible substitution of zinc oxide curing systems to a less hazardous metal complex, also evaluating the changes that higher surface area fillers can bring to the adhesive.
Gabriel Bachega Rosa, Sandra Aparecida Coelho Mello, Lucas Sousa Madureira, Silvana Navarro Cassu   +3 more
wiley   +1 more source

New Method for Online Observation of Growing Polyolefin Particles

CHIMIA, 2001
In classical experimental research work on catalytic olefin polymerization, kinetics and powder properties are always determined as an average value over a large number of polymer particles.
Jochem T.M. Pater, Günter Weickert, Wim P.M. van Swaaij   +2 more
doaj   +2 more sources

3D bioprinting in oral and craniomaxillofacial tissue regeneration: Progress, challenges, and future directions

BMEMat, EarlyView.
This paper summarized the application of 3D bioprinting in the regeneration of various tissues in the oral and craniomaxillofacial fields, including the required biomaterials and printing techniques. Abstract Oral and craniomaxillofacial tissues are essential for maintaining oral functions, including respiration, mastication, swallowing, and speech ...
Huilu Zhan, Haohao Ni, Xingge Yu, Mazaher Gholipourmalekabadi, Tianqi Wang, Kaili Lin, Jinsong Pan, Changyong Yuan   +7 more
wiley   +1 more source

Photochemical afterglow of single organic molecules with wide‐range tunable lifetime

PhotoMat, EarlyView., 2023
“All‐in‐one” strategy was used to achieve photochemical afterglow in single organic molecule, with second‐to‐hour range tunable lifetime by tailoring the electron‐withdrawing ability of substituents. Abstract Background Photochemical afterglow that relies on slow release of photons from the chemical energy stored by light pre‐irradiation has emerged as
Yuetian Pei, Yiwei Fan, Yawei Liu, Kuangshi Sun, Wei Feng, Qian Liu, Fuyou Li   +6 more
wiley   +1 more source

Metal‐Free Covalent Organic Frameworks for Photocatalytic CO2 Reduction

ChemistryEurope, EarlyView.
This review presents an environmentally sustainable strategy to address the critical issue of escalating atmospheric CO2 levels. It explores the application of metal‐free covalent organic frameworks in a photocatalytic approach, offering a green and efficient strategy for carbon dioxide reduction and contributing to climate change mitigation.
Supriti Dutta, Akhtar Alam, Pekham Chakrabortty, Pradip Pachfule   +3 more
wiley   +1 more source

Research Progress of Polyoxometalate‐Integrated Frameworks: Syntheses, Properties, and Applications

ChemistryEurope, EarlyView.
This review systematically summarizes the integration of polyoxometalates with covalent organic frameworks, metal‐organic frameworks, hydrogen‐bonded organic frameworks, and emerging porous hosts. It highlights synergistic effects, synthesis strategies, and applications in catalysis, energy storage, sensing, and biomedicine, while addressing current ...
De‐Yin Wang, Zhang‐Di Liu, Rui Xing, Zi‐Hao Wei, Zaixiang Zhang, Yang Yang, Jin Zhu   +6 more
wiley   +1 more source

Solvent‐Driven Pore Engineering in Coffee‐Derived Activated Hydrochar: Implications for Post‐Combustion CO2 Capture

Carbon Energy, EarlyView.
Solvent washing of coffee‐ground hydrochars produces activated carbons with tunable pore sizes while maintaining surface area. Removing non‐polar contaminants enhances microporosity, increasing CO2 uptake by 40%. Moderate pore sizes (9–12 Å) yield optimal CO2:N2 selectivity, whereas smaller pores reduce selectivity due to stronger interactions between ...
Muhammad Irfan Maulana Kusdhany, Maryna Vorokhta, Kazunari Sasaki, Masamichi Nishihara, Stephen Matthew Lyth   +4 more
wiley   +1 more source