Structure and Evolution of Ordered Domains in Deeply Quenched Polyrthelene Melt

PDF Version Also Available for Download.

Description

Solidification of polymeric materials, a complex process in which the entangled polymer melt becomes a composite of amorphous and crystalline domains, strongly depends on how the melt is cooled below its crystallization temperature. If cooling is at moderate rates, the most common and well. understood mechanism is via nucleation and growth of spherulites, but special cases exist where crystallization is preceded by a pre pre-transition state induced by density fluctuations. Such multi-step crystallization scenarios are suggested by many experiments, and recent theoretical and simulation work. Via energetic and geometric analyses, we have examined the structure of mesomorphic domains and the ... continued below

Physical Description

PDF-file: 3 pages; size: 0.6 Mbytes

Creation Information

Lacevic, N; Fried, L & Gee, R April 25, 2007.

Context

This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this article can be viewed below.

Who

People and organizations associated with either the creation of this article or its content.

Publisher

Provided By

UNT Libraries Government Documents Department

Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.

Contact Us

What

Descriptive information to help identify this article. Follow the links below to find similar items on the Digital Library.

Description

Solidification of polymeric materials, a complex process in which the entangled polymer melt becomes a composite of amorphous and crystalline domains, strongly depends on how the melt is cooled below its crystallization temperature. If cooling is at moderate rates, the most common and well. understood mechanism is via nucleation and growth of spherulites, but special cases exist where crystallization is preceded by a pre pre-transition state induced by density fluctuations. Such multi-step crystallization scenarios are suggested by many experiments, and recent theoretical and simulation work. Via energetic and geometric analyses, we have examined the structure of mesomorphic domains and the dynamics of their formation and evolution, including atomic scale details of molecular addition to ordered domains, as well as particle dynamics in the system, including high mobility jumps in the ordered domains at wavelengths matching the monomer spacing.

Physical Description

PDF-file: 3 pages; size: 0.6 Mbytes

Source

  • Presented at: American Chemical Society, Boston, MA, United States, Aug 19 - Aug 23, 2007

Language

Item Type

Identifier

Unique identifying numbers for this article in the Digital Library or other systems.

  • Report No.: UCRL-CONF-230356
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 914612
  • Archival Resource Key: ark:/67531/metadc880684

Collections

This article is part of the following collection of related materials.

Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

What responsibilities do I have when using this article?

When

Dates and time periods associated with this article.

Creation Date

  • April 25, 2007

Added to The UNT Digital Library

  • Sept. 22, 2016, 2:13 a.m.

Description Last Updated

  • Dec. 2, 2016, 12:51 p.m.

Usage Statistics

When was this article last used?

Yesterday: 0
Past 30 days: 0
Total Uses: 2

Interact With This Article

Here are some suggestions for what to do next.

Start Reading

PDF Version Also Available for Download.

International Image Interoperability Framework

IIF Logo

We support the IIIF Presentation API

Lacevic, N; Fried, L & Gee, R. Structure and Evolution of Ordered Domains in Deeply Quenched Polyrthelene Melt, article, April 25, 2007; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc880684/: accessed October 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.