Results 71 to 80 of about 2,112 (213)

Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications

Advanced Functional Materials, Volume 36, Issue 47, 11 June 2026.
Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi, Norma Mallegni, Andrea Dorigato, Mario Milazzo   +3 more
wiley   +1 more source

Designed Lewis Acid–Base Passivation for High Performance Perovskite Solar Cells

Advanced Functional Materials, Volume 36, Issue 51, 25 June 2026.
ABSTRACT Silicon's high cost and long energy payback time remain major barriers to the global expansion of solar power. In contrast, metal–halide perovskites offer abundant, solution‐processable absorbers, and have achieved efficiencies of 25%–30%, positioning them as strong competitors to silicon.
Afna Manaf, Hiba Shahulhameed, Bhabani Sankar Swain, Shengzhong (Frank) Liu, Adel Najar   +4 more
wiley   +1 more source

Behavior of Metallocene Olefin Polymerization Catalysts under High Pressure^†

, 2016
Behavior of Metallocene Olefin Polymerization Catalysts under High Pressure†
Takaya Mise (3057204), Arno Fries (3057207), Noriyuki Suzuki (729010), Yoshitaka Yamaguchi (140591)   +3 more
core   +1 more source

Unlocking the Functionalization and Reactivity of Ethylene Bridges in [2.2]Paracyclophanes: Strategies and Challenges

European Journal of Organic Chemistry, Volume 29, Issue 20, 27 May 2026.
Bridging the gap. Beyond deck functionalization, the ethylene bridges of [2.2]paracyclophanes offer a largely unexploited reactivity landscape. This review showcases strategies to functionalize these bridges and leverage them to build novel cyclophane architectures.
Rongyu Sun, Tamara Ye, Laurent Micouin, Erica Benedetti   +3 more
wiley   +1 more source

Observation of Different Catalytic Activity of Various 1-Olefins during Ethylene/1-Olefin Copolymerization with Homogeneous Metallocene Catalysts

Molecules, 2011
This research aimed to investigate the copolymerization of ethylene and various 1-olefins. The comonomer lengths were varied from 1-hexene (1-C6) up to 1-octadecene (1-C18) in order to study the effect of comonomer chain length on the activity and ...
Mingkwan Wannaborworn, Bunjerd Jongsomjit, Piyasan Praserthdam   +2 more
doaj   +1 more source

Surface model for gas-phase polymerizations of ethylene and propylene using supported metallocene/methylalumoxane catalysts

, 2002
In order to obtain more detailed information about supported metallocene/methylaluminoxane catalysts, 2 catalysts are supported onto a flat silicon wafer by spin-coating impregnation.
Piet J. Lemstra, Lemstra, P.J., Kaminsky, W, Weingarten, U, J.W. (Hans) Niemantsverdriet, Weingarten, U., Peter C. Thüne, Walter Kaminsky, Thüne, P.C., Fabian Müller, Müller, F., Muller, F, Niemantsverdriet, J.W., Loos, J, Niemantsverdriet, JW, Kaminsky, W., Joachim Loos, Lemstra, PJ, Ulrich Weingarten, Thune, PC, Loos, J.   +20 more
core   +1 more source

Unveiling the Role of Curvature in Carbon for Improved Energy Release of Ammonium Perchlorate

Advanced Materials, Volume 38, Issue 30, 27 May 2026.
High‐curvature carbon materials identified via machine learning and simulation can enhance the heat release and combustion performance of ammonium perchlorate. ABSTRACT The catalytic role of carbon curvature in the thermal decomposition of ammonium perchlorate (AP) remains largely unexplored. To address this gap, this study employs machine learning and
Dan Liu, Keliang Song, Haorui Zhang, Zhipeng Liu, Guansong He, Junru Wang, Wenming Yang, Xu Zhao, Zhijian Yang   +8 more
wiley   +1 more source

Copolymerization of 4-methyl-1-pentene with α,ω-alkenols

eXPRESS Polymer Letters, 2016
Copolymerization of 4-methyl-1-pentene (4M1P) with 9-decen-1-ol (9D1O) or 4-penten-1-ol (4P1O) was conducted by using metallocene catalysts. The activity could be improved under the higher polymerization temperature. The dyad distribution of poly(4M1P-co-
W. Wang, L. Hou, J. Sheng, M. Ren, Y. Tang   +4 more
doaj   +1 more source

Synthesis of Elastomers by Metallocene Catalysts.

Kobunshi, 1997
メタロセン触媒技術を用いたポリオレフィンの企業化が行われている.エラストマー領域においてもExxon,Dow,三井石化を中心に企業化が進行しつつある.ここでは,メタロセン触媒のエラストマー合成上の特徴である(1)ポリマー品質の優位性,(2)高共重合性,(3)高温高重合性,(4)新規ポリマー合成などに焦点を合わせて,最近の触媒研究の動向,各社の現状を報告する.
openaire   +2 more sources

Group 6 Metal NHC and CAAC Complexes in Homogeneous Catalysis: Reactivity Trends and Selected Applications

ChemCatChem, Volume 18, Issue 9, 14 May 2026.
Group 6 metal complexes of Cr, Mo, and W supported by N‐heterocyclic carbenes are emerging as versatile platforms for homogeneous catalysis. This review highlights advances in reduction, hydrogen transfer, oxidation, and small molecule activation, revealing how ligand design controls reactivity and opens sustainable alternatives to noble‐metal ...
Beatriz Garcia, Alberto Bertoldo, Beatriz Royo   +2 more
wiley   +1 more source