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Dsc Study in Situ on Copolymerization of C60 with Paracyclophane

Published online by Cambridge University Press:  22 February 2011

Shaoming Huang ,
Xuhai Yu  and
Changzheng Yang
Shaoming Huang
Affiliation:
Chemistry Department, Nanjing University, Nanjing 210008, P. R., China
Xuhai Yu
Affiliation:
Chemistry Department, Nanjing University, Nanjing 210008, P. R., China
Changzheng Yang
Affiliation:
Chemistry Department, Nanjing University, Nanjing 210008, P. R., China
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Abstract

Copolymerization of C60 with paracyclophane at high temperature was investigated by DSC in situ. Situ DSC profiles of mixed solids with different mole ratio of C60/paracyclophane(2:1, 1:1; 1:2; 1:4; 1:10) were determined. Experimental results show that C60 first dissolves in melting paracyclophane (280-330°C) then reacts with paracyclophane at 400-520°C. Copolymerization reaction is a stepwise and continued process. The reaction does not take place when the temperature is lower than 400 °C. The ratio of C60/paracyclophane affects the copolymerization process which is the reaction of C60 with p-xylylenediradical and also affects the structure of the resulting product. Semi-quantitative analysis of DSC profiles indicates every C60 molecule reacts with about 4-5 paracyclophane molecules to form crosslinking elastic copolymer. The structure of the copolymer may be like starburst dendrimer polymer. The copolymer was also characterized by IR, UV-VIS, and ESR.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 349: Symposium T – Novel Forms of Carbon II , 1994 , 197
Copyright
Copyright © Materials Research Society 1994

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References

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