Location

La Jolla, CA

Start Date

1-1-1998 12:00 AM

Description

In order to better understand the effects of molecular weight on the performance and service life of polymeric matrix composites we designed a series of investigations on a polyimide system which was developed for possible use in the airframe industry. We wanted to determine if engineering properties depend on the molecular weight of the potential matrix material, assuming that the polymer is not cross-linked. For this study we prepared six batches of the polyimide LaRC-SI™, where each batch possessed a different molecular weight. Cross-linking was discouraged by the addition of “end caps” which attach to the ends of the molecules and renders them chemically inert.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

17B

Chapter

Chapter 6: Materials Characterization

Section

Materials Properties

Pages

1411-1417

DOI

10.1007/978-1-4615-5339-7_182

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Effects of Molecular Weight on Mechanical Properties of the Polyimide Larc-SI™

La Jolla, CA

In order to better understand the effects of molecular weight on the performance and service life of polymeric matrix composites we designed a series of investigations on a polyimide system which was developed for possible use in the airframe industry. We wanted to determine if engineering properties depend on the molecular weight of the potential matrix material, assuming that the polymer is not cross-linked. For this study we prepared six batches of the polyimide LaRC-SI™, where each batch possessed a different molecular weight. Cross-linking was discouraged by the addition of “end caps” which attach to the ends of the molecules and renders them chemically inert.