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Anionic Synthesis of Chain-End and In-Chain Functional Polymers

Wichman, Elizabeth P.
http://rave.ohiolink.edu/etdc/view?acc_num=akron1226961648

Abstract Details

2008, Master of Science, University of Akron, Polymer Science.
The purpose of this research was to anionically prepare well-defined polystyrenes that had functional groups either at the chain end or in the middle of the chain. Functional groups were introduced by using a general functionalization method (GFM). For chain-end functionalizations, after poly(styryl)lithium was synthesized, it was terminated with chlorodimethylsilane. This produced chain-end, silyl hydride-functionalized polystyrene. Then, through a hydrosilation reaction between the silyl hydride group and the double bond of a substituted alkene, chain-end functional polystyrene was produced. For in-chain functionalizations, after poly(styryl)lithium was prepared, it was linked with dichloromethylsilane, which placed a silyl hydride functionality in the middle of the chain. This was then reacted with an alkene in a hydrosilation reaction to produce the in-chain functionalized polystyrene. Hydrosilations were performed using Karstedt…#8482;s catalyst in benzene at room temperature. Allyl acetate and methyl-3-butenoate were the alkenes used for both chain-end and in-chain functionalizations, as well as allyl alcohol for in-chain functionalizations. The functionalized polystyrenes were characterized by FTIR, 1H NMR and 13C NMR spectroscopy, and MALDI TOF MS.
Roderic Quirk, PhD (Advisor)
79 p.
Polymers
anionic polymerization; polystyrene; functional polymers; hydrosilation;

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Citations

  • Wichman, E. P. (2008). Anionic Synthesis of Chain-End and In-Chain Functional Polymers [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1226961648

    APA Style (7th edition)

  • Wichman, Elizabeth. Anionic Synthesis of Chain-End and In-Chain Functional Polymers. 2008. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1226961648.

    MLA Style (8th edition)

  • Wichman, Elizabeth. "Anionic Synthesis of Chain-End and In-Chain Functional Polymers." Master's thesis, University of Akron, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=akron1226961648

    Chicago Manual of Style (17th edition)

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© 2008, all rights reserved.
This open access ETD is published by University of Akron and OhioLINK.