Accession Number : ADA117485

Title :   A Method of Polymer Design and Synthesis for Selective Infrared Energy Absorption.

Descriptive Note : Conference paper,

Corporate Author : CONSTRUCTION ENGINEERING RESEARCH LAB (ARMY) CHAMPAIGN IL

Personal Author(s) : Smith,Alvin

PDF Url : ADA117485

Report Date : 18 Jun 1982

Pagination or Media Count : 15

Abstract : The present study presents a procedural method of designing and synthesizing polymers intended to selectively absorb energy in particular bands of the infrared spectrum. Thus, filters may be prepared that can be used to mask or alter the signatures of infrared-emitting objects and, in effect, camouflage these objects against observation by attenuating or altering the infrared energy that is allowed to be transmitted to a detector. In addition to the molecular design of the polymer, a change in the physical form by foaming is studied to determine this effect on the overall efficiency of the attenuating properties of the filter. An advantage of foaming the polymer is the ability to make essentially self-supporting filter enclosures for infrared emitters. The most obvious uses of selectively absorbing infrared filters are in military camouflaging applications and as photographic filters analogous to the visible light filters commonly used.

Descriptors :   *Synthesis(Chemistry), *Polymers, *Infrared radiation, *Energy absorbers, Electromagnetic radiation, Molecular structure, Emitters, Infrared spectra, Filters, Camouflage, Military applications, Optical filters, Visible spectra, Selection

Subject Categories : Polymer Chemistry
      Plastics
      Infrared Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE