Synthesis and characterization of novel complementary multiple-hydrogen bonded (CMHB) macromolecules via a Michael addition

Koji Yamauchi, Jeremy R. Lizotte, Timothy Edward Long*

*この研究の対応する著者

研究成果: Article査読

83 被引用数 (Scopus)

抄録

The synthesis and characterization of novel complementary multiple hydrogen-bonded poly-(styrene) (CMHB-PS) oligomers possessing controlled molecular weights and narrow molecular distributions are described. Novel CMHB-PS oligomers comprising terminal heterocyclic base units were synthesized in a controlled fashion via derivatization of well-defined hydroxyl-terminated PS. The heterocyclic-terminated oligomers were synthesized via a Michael addition of the corresponding heterocyclic compounds such as adenine, thymine, and 2,6-purine with acrylated PS. The acrylated PS precursors were prepared in a quantitative fashion via reaction of hydroxyl-terminated PS with acryloyl chloride in the presence of triethylamine. Terminal heterocyclic bases were introduced via a Michael addition in the presence of potassium tert-butoxide (t-BuOK). Novel CMHB-PS aggregates were prepared via subsequent solution blending of PS with complementary heterocyclic base units. 1H NMR analysis confirmed that a 1:1 mixture of adenine-PS or purine-PS with thymine-PS formed complementary multiple hydrogen bonding and exhibited thermoreversibility. In addition. 1H NMR analysis confirmed that complementary hydrogen bonds dissociated at 95°C in deuterated toluene.

本文言語English
ページ(範囲)8745-8750
ページ数6
ジャーナルMacromolecules
35
23
DOI
出版ステータスPublished - 2002 11 5
外部発表はい

ASJC Scopus subject areas

  • 材料化学

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