Rate Information from Constant Intensity Irradiation of Alkyl Aryl Ethers

4 RATE INFORMATION FROM CONSTANT INTENSITY IRRADIATION OF ALKYL ARYL ETHERS 

At room temperature, the rate constant for loss of CO from a 2-phenylpropanoyl or a 

DYNAMICS OF RADICAL PAIR PROCESSES IN BULK POLYMERS 

The /t2b/ 4b ratios from la and benzyl 1-naphthyl ether (3a) are compared in Table 13.6. Although the ratios from 3a may be affected shghtly by the very small amounts of out-of-cage reactions indicated by the presence of very low relative yields of (Bz)2 from irradiations in LDPE, the pattern is clear. Addition of benzyl radicals to the closer 2-position of 1-naphthyl is favored when the benzyl/l-naphthoxy radical pair is produced directly and, therefore, the benzyl radical center is closer to the 2-position than to the 4-position of 1-naphthoxy. 

Another interesting comparison is between the ratios from the ester, phenyl 

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