In this work, the effects of radiation on polytetrafluoroethylene (PTFE) samples with different crystallinity were studied. Using Suwa's equation for calculating the number‐average molecular weight of PTFE, the radiation‐induced reduction in molecular weight was followed and the G values of scission of PTFE were also obtained on the basis of the changes in molecular weight. The G (scission) for as‐polymerized PTFE was 2.15 ± 0.01, whereas for sintered sample, which has a relative low crystallinity, G (scission) = 6.0 ± 0.14.
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Zhong et al. (1993) studied this question.
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