Results 61 to 70 of about 8,053 (218)

PEDOT:PSS—A Key Material for Bioelectronics

open access: yesAdvanced Science, Volume 13, Issue 11, 23 February 2026.
PEDOT:PSS ‐ Poly(3,4‐ethylenedioxythiophene) polystyrene sulfonate ‐ is typically processed from water dispersions to form multifunctional and multidimensional constructs with tunable electronic and ionic conductivity. Throught processing engineering, PEDOT:PSS is intergrated in bioelectronic devices that operate efficiently in physiological conditions
Alan Eduardo Ávila Ramírez   +5 more
wiley   +1 more source

Study on the Effects of Temperature, Time and the Policy of Prepolymerization on Particle Morphology in Propylene Slurry Polymerization with Heterogeneous Ziegler-Natta Catalysts [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2007
The effects of temperature, time and the strategy of prepolymerization were studied on the morphology of polypropylene particles. propylene polymerization was carried out in slurry phase using 4th generation of Ziegler-Natta Catalyst, cyclohexylmethyl ...
G. Pircheraghi   +2 more
doaj   +1 more source

Functionalized Polyolefin With Photoresponsive Surface

open access: yesChemistryEurope, Volume 4, Issue 2, February 2026.
The introduction of stimulus‐responsive groups can give polymers some material properties that cannot be realized simply by design and synthesis. Polyolefins, due to their nonpolar nature, suffer from poor compatibility with polar materials; however, directly grafting polar groups like hydroxyls onto their surface via traditional synthesis risks ...
Qiuhui Tian   +7 more
wiley   +1 more source

Sixtieth Anniversary of Ziegler-Natta Catalysts and Stereospecific Polymerization [PDF]

open access: yesKemija u Industriji, 2015
This review article highlights the history of the discoveries of organometallic catalysts and stereospecific polymerization of α-olefins, dienes and a number of vinyl monomers by Karl Ziegler and Giulio Natta sixty years ago, their developments and ...
Janović Z. , Veksli Z.
doaj  

Ethylene Homopolymerization by Ziegler-Natta (TiCl4/MgCl2) Catalyst through Full Factorial Experimental Design [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2009
Full factorial experimental design (23) for the evaluation of slurry ethylene polymerization in the presence of an industrial TiCl4/MgCl2 Ziegler-Natta catalyst was employed.
S. Hakim   +3 more
doaj   +1 more source

Reactions of (Arylimido)vanadium(V)–Trialkyl Complexes with Phenols: Effects of Arylimido Ligands and Phenols for Formation of the Vanadium Phenoxides [PDF]

open access: yes, 2019
Reactions of a series of (arylimido)vanadium(V) trialkyl complexes, V(NAr′)(CH_2SiMe_3)_3 (Ar′ = C_6H_5, 2-MeC_6H_4, 2,6-Me_2C_6H_3, 2,6-Cl_2C_6H_3), with various phenols (ArOH, Ar = 2,6-F_2C_6H_3, 2,6-Cl_2C_6H_3, 2,6-Me_2C_6H_3, 2,6-^iPr_2C_6H_3, 2 ...
Hayashibara, Hitomi   +2 more
core   +4 more sources

Developing Calibration Reference Materials and Standardized Protocols for Reliable DSC of Polyolefins

open access: yesJournal of Applied Polymer Science, Volume 143, Issue 3, January 15, 2026.
Standardized protocol for reducing T m standard deviation. ABSTRACT Differential scanning calorimetry (DSC) serves as a critical analytical tool in the polyolefin industry for quality control and product differentiation. Between 2000 and 2025, 7574 global patent applications referenced DSC data, highlighting its ubiquitous role in the industry.
Xingxing Zhang   +7 more
wiley   +1 more source

A Suzuki Coupling Based Route to 2,2'-Bis(2-indenyl)biphenyl Derivatives [PDF]

open access: yes, 2002
Because of the promising performance in olefin polymerization of 2,2'-bis(2-indenyldiyl)biphenyl zirconium dichloride, we developed a new and broadly applicable route to 2,2'-bis(2-indenyl)biphenyl derivatives.
Arts, Henricus J.,   +5 more
core   +3 more sources

Styrene Polymerization with Group III Metallocenes: A Generative and Interpretable Catalyst Design Strategy Combining Density Functional Theory and Machine Learning

open access: yesChemistryEurope, Volume 4, Issue 1, January 2026.
Machine‐learning methods are used to predict styrene binding energies and insertion barriers in a series of group III cationic catalysts. A generative algorithm based on these predicted data is provided to propose new catalysts. The rational design of group III metallocene catalysts for styrene polymerization remains a complex challenge due to ...
Stella Christodoulou   +3 more
wiley   +1 more source

Avaliação do desempenho de catalisadores híbridos Ziegler-Natta/metaloceno na homo- e copolimerização de etileno [PDF]

open access: yesPolímeros, 2000
Foram preparados catalisadores híbridos a partir de um catalisador do tipo Ziegler-Natta heterogêneo (MgCl2.TiCl4) e de um metalocênico (CpTiCl3), afim de se obter catalisadores com diferentes tipos de centros ativos.
Fernanda O. V. Cunha   +2 more
doaj   +1 more source

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