Type of Document	Dissertation
Author	Meyer, Gerald W.
URN	etd-05222007-091420
Title	Novel high performance thermosetting polyimides
Degree	PhD
Department	Chemistry
Advisory Committee	Advisor Name Title McGrath, James E. Committee Chair
Keywords	polymers model studies modecular weight
Date of Defense	1995-04-01
Availability	restricted
Abstract Soluble imide thermosetting (reactive) oligomers of controlled moleular weights were synthesized utilizing 3-phenylethynylmdine, 4-phenylethynylphthalic anhydride or phenylmaleic anhydride as the reactive endcapping agents. The phenylethynyl endcapping agents were synthesized by a ppalium-catalyzed coupling reaction in yields greater than 80 % after purification. The polyitmide oligomers were synthesized via solution imidization techniques, using the ester-acid derivatives of various dianhydrides and various aromatic diamines.
Files	Filename       Size       Approximate Download Time (Hours:Minutes:Seconds)     28.8 Modem   56K Modem   ISDN (64 Kb)   ISDN (128 Kb)   Higher-speed Access  LD5655.V856_1995.M494.pdf 8.63 Mb 00:39:57 00:20:32 00:17:58 00:08:59 00:00:46 next to an author's name indicates that all files or directories associated with their ETD are accessible from the Virginia Tech campus network only.

If you have questions or technical problems, please Contact DLA.