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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

Thermal degradation of poly (vinyl chloride).

Gupta, Ved Prakash. January 1970 (has links)
No description available.
22

Structure and properties of linear and star-like thermotropic liquid crystalline polymeric fibers

Bai, Yiqun 12 1900 (has links)
No description available.
23

Effect of polysiloxane side groups on chemistry and kinetics of degradation and evolution of pores in the resultant polymer

Deshpande, Girish Nilkanth 12 1900 (has links)
No description available.
24

Enhanced infrared absorptance of polyethylene terephthalate via inorganic particulate additives

Maiorino, Lori Ann 05 1900 (has links)
No description available.
25

Synthesis and physical properties of styrene-vinylpyridinium ionomers of various architectures

Gauthier, Sylvie, 1955- January 1985 (has links)
Styrene-4-vinylpyridinium ionomers of different architectures, random and ABA blocks, were synthesized and their thermal and dynamic mechanical properties investigated. / The Tg's of the random ionomers were found to increase regularly with increasing ion content, at a rate of about 3.5(DEGREES)C per mole % of ions. In contrast with other ionomeric systems studied before, however, these materials showed only one peak in their tan delta curves, associated with the Tg of the matrix. The absence of a second, high temperature peak suggests the absence of clusters in these vinylpyridinium ionomers, at least at temperatures above their Tg. The storage modulus curves were in agreement with this conclusion. / An elaborate polymerization line was constructed for the production of the block copolymers by living anionic polymerization; a basic design was modified considerably and two new units were completely designed in this laboratory. Only one Tg, associated with the Tg of the polystyrene phase, was observed in DSC measurements for the resulting ionomers. The glass transition of the ionic domains was detected in dynamic mechanical measurements as a shoulder on the low temperature side of the polystyrene transition. This unexpected low value for the Tg of the ionic domains was attributed to plasticization by water.
26

The effects of interfacial energies on the first and second order transitions in silica-filled polydimethylsiloxanes.

Yim, Agnes Tsui Wing. January 1971 (has links)
No description available.
27

The convective melting and coalescence of polymer granules

Malguarnera, Salvatore Chris. January 1978 (has links)
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Mechanical Engineering, 1978 / Vita. / Includes bibliographical references. / by Salvatore C. Malguarnera. / Ph. D. / Ph. D. Massachusetts Institute of Technology, Department of Mechanical Engineering
28

Thermal degradation of poly (vinyl chloride).

Gupta, Ved Prakash. January 1970 (has links)
No description available.
29

Microstructure and kinetics of thermal degradation of alkene copolymers of vinyl chloride

Ramacieri, Patricia. January 1986 (has links)
No description available.
30

The effects of interfacial energies on the first and second order transitions in silica-filled polydimethylsiloxanes.

Yim, Agnes Tsui Wing. January 1971 (has links)
No description available.

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