Polymer Database

Polymer Database (PoLyInfo)

Polymer Database "PoLyInfo" systematically provides various data required for polymeric material design. The main data source is academic literature on polymers. Information on polymers including properties, chemical structures, IUPAC names, processing methods of measured samples, measurement conditions, used monomers and polymerization methods are stored in a object database. About 100 types of properties including thermal, electrical and mechanical properties are covered. Homopolymers, copolymers, furthermore polymer blends, composites and compounds that consist of homopolymers and copolymers are open to the public.

For New Users

To use MatNavi, "DICE Account User Registration", "Domain Name Registration of E-mail Address", and "MatNavi Usage Application" are required. Please see the link for details.

Mass downloading of data is prohibited

Web scraping of data is prohibited!
The acquisition of large amounts of data, whether by manual or mechanical means, is prohibited by the MatNavi Service Terms of Use.
User accounts will be suspended when there is a possibility of data access that is deemed to be a violation.
Please comply with the terms of use, as the MatNavi database service will no longer be viable.

Number of open data

March 29, 2024
Homopolymers18,958Polymer sample166,446
Copolymers7,978Property points519,175
Polymer Blends2,655Literature data20,959
Composites3,100Recorded data

How to use PoLyInfo

PoLyInfo Help

This page provides an overview, glossary, and operating instructions for all aspects of PoLyInfo. This is a must-see for anyone who wants to use PoLyInfo.

User Registration

If you want to use PoLyInfo, please register as a MatNavi user.


Polymer Search

Polymer Search is done by specifying the polymer name, type, chemical formula, material type, properties and reference publication. There are "Basic" (simple condition setting) and "Advanced" (detailed condition setting) searches, and furthermore "Text" (text search) that searches all display contents.

Polymer Structure Search

A search can be done by specifying the type and quantity of an atom group included in the constitutional unit of the polymer.

Easy Browse

The user can search from the "Plotted data".

Monomer Search

Monomer Search is done by specifying the monomer name, registry No., class, molecular formula and molecular weight.

NMR Database

1H, 13C NMR spectra of 154 samples are provided with assignment data.


  • National Institute for Materials Science (NIMS) holds the copyright of this database system.
  • No reproduction, republication or distribution to third parties of any content is permitted without written permission of NIMS.
  • NIMS takes no responsibility for any damage incurred by the user as a result of using this database system.

System Requirements

Browser : Microsoft Edge, Google Chrome, Firefox



Scheduled system maintenance

Service may be unavailable every Wednesday from 18:00 to 20:00 (JST) due to scheduled system maintenance.