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用非交替的5/7/5环形图案制造的石墨烯纳米丝带

Zijie Chen1, Jianmin Huang2,3, Qifan Chen4,5

  • 1National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China.

Journal of the American Chemical Society
|November 21, 2025
PubMed
概括

No abstract available in PubMed .

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Olefin Metathesis Polymerization: Ring-Opening Metathesis Polymerization (ROMP)01:16

Olefin Metathesis Polymerization: Ring-Opening Metathesis Polymerization (ROMP)

Ring-opening metathesis polymerization or ROMP involves strained cycloalkenes as starting materials. The mechanism of ROMP proceeds by reacting cycloalkene with Grubbs catalyst to give metallacyclobutane intermediate which undergoes a ring-opening reaction to form new carbene. The new carbene reacts with another molecule of cycloalkene. Repetition of these steps leads to the formation of an unsaturated open-chain polymer product. All these steps are reversible, however, relieving the ring...