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Functional monomers and polymers. XCVII. Synthesis of oligomer models of polyethyleneimine derivatives containing pendant thymine bases

✍ Scribed by Inaki, Yoshiaki ;Sakuma, Yo ;Suda, Yasuo ;Takemoto, Kiichi


Publisher
John Wiley and Sons
Year
1982
Weight
698 KB
Volume
20
Category
Article
ISSN
0360-6376

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✦ Synopsis


Abstract

A series of oligomer models of polyethyleneimine derivatives having pendant thymine bases were prepared by the reaction of carboxyethyl derivatives of thymine with oligomer amines using an activated‐ester method. It was found that the hypochromicity values obtained from UV spectra and pKa values obtained from spectrophotometric titrations depend on the chain length of the oligomers and the thymine content of the polymers.


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## Abstract A series of oligomer model compounds of polyethyleneimine derivatives with pendant adenine bases were prepared by the reaction of a carboxyethyl derivative of adenine with oligomeric amines, using an activated ester method. To evaluate the intramolecular interaction between pendant aden

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