Effect of plasticizer on segmental dynamics of bulk and adsorbed poly(vinyl acetate)-d₃

Author

Rakesh R. Nambiar

Abstract

"Ts work consists of three topics. The first part deals with deuterium nuclear magnetic resonance (²H NMR) study of effect of small molecule plasticizers on deuterium labeled bulk poly(vinyl acetate) (PVAc-d₃). The segmental dynamics of the PVAc-plasticizer system was studied as a function of temperature at different plasticized amounts. The system was also studied with modulated differential scanning calorimetry (MDSC). The second part is concerned with the effect of plasticizers on PVAc-d₃ adsorbed on silica surfaces. The adsorbed polymers were studied using ²H NMR and MDSC for different adsorbed amounts and different plasticizer contents as a function of temperature. The spectra obtained from the ²H NMR for both the above parts i.e. for bulk and adsorbed samples was simulated and fitted to understand the segmental dynamics of PVAc in detail. The third part investigates the decomposition of 2,2'-azobis(isobutyronitrile) (AIBN) in emulsion-gels and silica emulsion-gels for room temperature polymerization. This study involved the use of UV- spectrometer for studying the decomposition of AIBN as a function of time"--Introduction, lead 1.

Advisor(s)

Blum, Frank D.

Committee Member(s)

Sinn, Ekkehard
Ludlow, Douglas K.

Department(s)

Chemistry

Degree Name

M.S. in Chemistry

Sponsor(s)

National Science Foundation (U.S.)

Publisher

University of Missouri--Rolla

Publication Date

Spring 2006

Journal article titles appearing in thesis/dissertation

• Segmental dynamics of bulk PVAc-d₃ by solid-state ²H NMR: effect of small molecule plasticizer
• Segmental dynamics of adsorbed PVAc-d₃ by solid state ²H NMR: effect of small molecule plasticizer
• Study of 2,2'-azobis(isobutyronitrile) decomposition in emulsion gels during room temperature polymerization

Pagination

xii, 115 pages

Rights

© 2006 Rakesh Ramachandran Nambiar, All rights reserved.

Document Type

Thesis - Citation

File Type

text

Language

English

Subject Headings

Emulsions
Nuclear magnetic resonance
Plasticizers
Vinyl acetate

Thesis Number

T 8936

Print OCLC #

80943567

Link to Catalog Record

Full-text not available: Request this publication directly from Missouri S&T Library or contact your local library.

Recommended Citation

Nambiar, Rakesh R., "Effect of plasticizer on segmental dynamics of bulk and adsorbed poly(vinyl acetate)-d₃" (2006). Masters Theses. 3848.
https://scholarsmine.mst.edu/masters_theses/3848