Chain transfer agents that are chlorine-free and liquid under polymerization conditions, useful for fluoromonomer polymerization, have the following structure: R.sup.1 --O--R.sup.2 They are superior to common chain transfer agents such as chloroform in being safer and environmentally benign. They are also superior to gaseous chain transfer agents such as ethane because they do not enter the fluoromonomer gas recycle streams and so do not complicate the analysis and purification of those streams.

Οι πράκτορες μεταφοράς αλυσίδων που είναι χλώριο-ελεύθεροι και υγροί κατώτεροι όροι πολυμερισμού, χρήσιμοι για τον πολυμερισμό fluoromonomer, έχουν την ακόλουθη δομή: R.sup.1 -- ο -- R.sup.2 είναι ανώτερα από τους κοινούς πράκτορες μεταφοράς αλυσίδων όπως το χλωροφόρμιο στην ύπαρξη ασφαλέστερα και περιβαλλοντικά καλοκάγαθα. Είναι επίσης ανώτεροι από τους αεριώδεις πράκτορες μεταφοράς αλυσίδων όπως το αιθάνιο επειδή δεν εισάγουν τα ανακύκλωσης ρεύματα fluoromonomer αέριο και έτσι δεν περιπλέκουν την ανάλυση και τον καθαρισμό εκείνων των ρευμάτων.

 
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