Type of Document	Dissertation
Author	Liu, Shu
URN	etd-02272007-092408
Title	Molecular necklaces : polyester rotaxanes
Degree	PhD
Department	Chemistry
Advisory Committee	Advisor Name Title Gibson, Harry W. Committee Chair Dorn, Harry C. Committee Member Marand, Hervé L. Committee Member McGrath, James E. Committee Member Tanko, James M. Committee Member
Keywords	transesterification polymerization
Date of Defense	1995-01-05
Availability	restricted
Abstract Polyrotaxanes consisting of 30-60 membered aliphatic crown ether macrocycles whose cavities are pierced by polysebacate chains were synthesized by several polymerization approaches including transesterification polymerization, the acid chloride method, and interfacial polymerization. The polyrotaxanes were purified by multiple reprecipitations into good solvents for the crown ethers. In some cases the threaded macrocycles are constrained onto polymer chains by the incorporation of monofunctional blocking groups at polymer chain ends, or by the copolymerization of a difunctional blocking group with other monomers.
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