Výsledky vyhledávání - "Yongrong Chen"

Synthesis of thiol- and carboxyl-terminated poly(p-phenylene sulfide) oligomers

Autor: Qixian Wu, Guoxiang Miao, Zili Yu, Yongrong Chen

Publikováno v: Macromolecular Chemistry and Physics. 197:4061-4068

Poly(p-phenylene sulfide) (PPS) oligomers were synthesized from sodium sulfide (SS) and p-dichlorobenzene (p-DCB) in hexamethylphosphoramide (HMPA) under atmospheric pressure. The effects of reaction time, temperature, and monomer ratio on end groups

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7c7f9827c921616e01325409dc35a44c
https://doi.org/10.1002/macp.1996.021971207

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Study on the synthesis and property differences of two kinds of terminated poly(phenylene sulfide) oligomers

Autor: Zili Yu, Yongrong Chen, Li Kuang, Qixian Wu

Publikováno v: European Polymer Journal. 32:1371-1375

Chloro terminated poly(phenylene sulfide) (PPS) oligomers and mercapto terminated PPS oligomers have been synthesized separately by changing the molar ratio of p-dichlorobenzene and sodium sulfide, and characterized by FT-IR spectroscopy, Raman spect

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::82708d11f457fd9e0b60cd7c2501e90d
https://doi.org/10.1016/s0014-3057(96)00094-8

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Syntheses and characterization of poly(phenylene sulfide)-poly(ether sulfone) block copolymers

Autor: Qixian Wu, Yongrong Chen, Li Kuang

Publikováno v: Journal of Applied Polymer Science. 61:1607-1614

Poly(phenylene sulfide)-poly(ether sulfone) (PPS-PES) block copolymers were synthesized by polycondensation of chloro-terminated PPS oligomers and hydroxylic-terminated PES oligomers at atmospheric pressure. The structure and compositions of PPS-PES

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::963d2e90bc355e5ff46cce8fde54917e
https://doi.org/10.1002/(sici)1097-4628(19960829)61:9<1607::aid-app20>3.0.co

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Model and algorithm for discrete network equilibrium design problem

Autor: Yongrong Chen

Publikováno v: 2012 2nd International Conference on Uncertainty Reasoning and Knowledge Engineering.

This paper studies a new form for discrete network design problem. The new model is different form the traditional bi-level programming model. In the new model, not only expanding the capacity of the existing congested links or adding new links to th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::57f3bbfafba9932a3a653d49069f8d85
https://doi.org/10.1109/urke.2012.6319536

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Magnetic confined discharges under high gas pressure

Autor: Junlin Qiu, Haibin Sun, Zhiwei Gong, Yongrong Chen, Xuejin Hu, Huaimin Gu

Publikováno v: SPIE Proceedings.

The characteristics of the magnetic confined discharges under high gas pressure (> 10 4 Pa) are investigated, e.g. electron motion equation under electromagnetic fields, electron transport coefficients, the influences of magnetic field and gas pressu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e370a7392293de3fe953e023bd98e96b
https://doi.org/10.1117/12.361161

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The synthesis of polyphenylene sulfide and bismaleimide copolymer

Autor: Qixian Wu, Zili Yu, Guoxiang Miao, Yongrong Chen

Publikováno v: European Polymer Journal. 33:1401-1402

PPS/BMI copolymers were synthesized from thiol terminated PPS oligomers and BMI by addition reactions, and were characterized by FT-IR and DSC measurements. The results have been compared with those of PPS/BMI blend.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8c846b4ab544851fd921dc194db35125
https://doi.org/10.1016/s0014-3057(96)00260-1

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