Results 31 to 40 of about 355,391 (369)

Efficient and selective degradation of polyethylenes into liquid fuels and waxes under mild conditions

Science Advances, 2016
A catalytic alkane metathesis provides a mild and selective degradation of polyethylene wastes into valuable fuels and waxes. Polyethylene (PE) is the largest-volume synthetic polymer, and its chemical inertness makes its degradation by low-energy ...
Xiangqing Jia, Chuan Qin, Tobias Friedberger, Z. Guan, Zheng Huang   +4 more
semanticscholar   +1 more source

The effect of modality on linear low-density polyethylene crystallization behaviour at high and very high supercoolings; pp. 53–57 [PDF]

Proceedings of the Estonian Academy of Sciences, 2009
Isothermal crystallization rates of uni- and bimodal linear low density polyethylenes having similar average molar mass and branching content were analysed at various temperatures in a very high supercooling range by means of a novel method – chip ...
Triin Märtson, Andres Krumme, Veronika Gavrilkina, Anti Viikna   +3 more
doaj   +1 more source

Fracture mechanics analysis of arc shaped specimens for pipe grade polymers [PDF]

, 2009
Accepted ...
Argyrakis, C, Leevers, PS, Özbek, P
core   +1 more source

Direct Synthesis of Polyethylene Thermoplastic Elastomers Using Hybrid Bulky Acenaphthene-Based α-Diimine Ni(II) Catalysts

Molecules, 2023
Recently, polyolefin thermoplastic elastomers can be obtained directly using ethylene as a single feedstock via α-diimine nickel-catalyzed ethylene chain walking polymerization.
Hui Wang, Weiqing Lu, Mingmin Zou, Shengyu Dai   +3 more
doaj   +1 more source

Electron-Rich Metal Cations Enable Synthesis of High Molecular Weight, Linear Functional Polyethylenes.

Journal of the American Chemical Society, 2018
Group 10 metal catalysts have shown much promise for the copolymerization of nonpolar with polar alkenes to directly generate functional materials, but access to high copolymer molecular weights nevertheless remains a key challenge toward practical ...
Wei Zhang, P. Waddell, Margaret A. Tiedemann, Christian E. Padilla, Jiajun Mei, Liye Chen, Brad P. Carrow   +6 more
semanticscholar   +1 more source

Recent update on crosslinked polyethylene in total hip arthroplasty

SICOT-J, 2020
More than two decades after their clinical introduction, crosslinked polyethylenes (XLPE) have been widely adopted. Though concerns were initially raised regarding oxidation and brittleness, on a large scale, the first generation of XLPE continues to be ...
Langlois Jean, Hamadouche Moussa
doaj   +1 more source

Ultra-strong long-chain polyamide elastomers with programmable supramolecular interactions and oriented crystalline microstructures

Nature Communications, 2019
Long-chain polyamides could bridge the gap between traditional polyamides and polyethylenes. Here the authors show the preparation of diamide diene monomers derived from natural resources coupled by thiol-ene addition copolymerization to form long-chain ...
Lingzhi Song, Tianyu Zhu, Liang Yuan, Jiangjun Zhou, Yaqiong Zhang, Zhongkai Wang, Chuanbing Tang   +6 more
doaj   +1 more source

UHMWPE/SBA-15 nanocomposites synthesized by in situ polymerization [PDF]

, 2016
Different nanocomposites have been attained by in situ polymerization based on ultra-high molecular weight polyethylene (UHMWPE) and mesoporous SBA-15, this silica being used for immobilization of the FI catalyst bis [N-(3-tert-butylsalicylidene)-2,3,4,
Adewole, Amoli, Ana E. Ferreira, Baier, Bakshi, Beck, Beloshenko, Bento, Bryliakov, Campos, Campos, Campos, Carlini, Cerrada, Cerrada, Chen, Cui, Cybo, Dangsheng, Deng, Dong, Dorigato, Díez-Pascual, Ernesto Pérez, Guo, Henri Cramail, Ianuzzi, Ivanchev, Ivanchev, Iwashita, João P. Lourenço, Kaminsky, Katti, Klimova, Kresge, Kurek, Kurtz, M. Rosário Ribeiro, Makio, Makio, Maria L. Cerrada, Mitani, Oliver, Olmos, Panchenko, Park, Quinn, Ribeiro, Sandaroos, Severn, Sinfrônio, Spiegelberg, Sánchez, Talebi, Tjong, Vicente Lorenzo, Wypych, Xu, Zhang, Zhao, Zohuri   +60 more
core   +3 more sources

Polyethylene

Soil Science, 1958
Bibliographical footnotes. ; Mode of access: Internet.
openaire   +2 more sources

Comparison of the influence of Cu micro- and nano-particles on the thermal properties of polyethylene/Cu composites

eXPRESS Polymer Letters, 2009
Polyethylene (LDPE, LLDPE and HDPE) composites with different copper (micro- and nano-sized particles) contents were prepared by melt mixing and compression moulding.
doaj   +1 more source