Studies on radiation effects of PTFE. I. Changes in crystallizing behavior and number average molecular weight of PTFE irradiated at different temperatures |
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| Authors: | Xiaoguang Zhong Jiazhen Sun Yuefang Zhang Fusong Wang |
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| Institution: | Chinese Academy of Sciences , Changchun, 130022, People's Republic of China |
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| Abstract: | The present work deals with changes in the number average molecular weight (M n) of PTFE irradiated at different temperatures. A decrease in M n was observed and attributed to the scission of polymer chains. On the other hand, it was also observed that M n decreased to a minimum value with increasing irradiation dose and then increased; the doses at which the minimum value of M n occurs are temperature dependent. The increase is explained as being due to crosslinking reactions occurring during the irradiation of PTFE. |
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