What is the Polydispersity Index (PDI)?

The PDI is a measure of the distribution of molecular masses in a polymer sample. A PDI of 1 indicates a monodisperse sample where all chains are the same length.

How do I calculate the degree of polymerization?

You can use the `calculate_dp_from_mn` tool by providing the monomer weight and the number-average molecular weight.

Can I get a full summary of my polymer sample?

Yes, the `get_molecular_distribution_summary` tool provides a comprehensive overview including $DP_n$, $DP_w$, and PDI.

Polymerization Degree Calculator MCP Connector for Claude

A+

Calculate degree of polymerization, repeat units, and PDI for polymer chains.

4 tools Official Updated Oct 1, 2026 Official Vinkius Partner

More Details Connect to Claude

This MCP server provides specialized chemical engineering tools to analyze polymer structures. It allows AI agents to determine the degree of polymerization ($DP_n$ and $DP_w$), calculate the number of repeat units, and determine the Polydispersity Index (PDI) using monomeric and molecular weight data. Use get_molecular_distribution_summary for a complete overview of molecular characteristics or calculate_pdi to assess the breadth of molecular weight distribution.

polymerchemistrymolecular-weightengineeringpolydispersity

Connect to Claude

Subscribe on Vinkius, then add this connector to Claude.ai or Claude Code.

① Claude.ai (web app)

Go to Settings → Connectors → Add custom connector
Paste the MCP endpoint URL below

https://edge.vinkius.com/vk_preview_N3g9vZKsWPbhXwe8q9ZhnYEHtuQYWmSb1GmYHr2T/mcp

② Claude Code (terminal)

claude mcp add --transport http polymerization-degree-calculator https://edge.vinkius.com/vk_preview_N3g9vZKsWPbhXwe8q9ZhnYEHtuQYWmSb1GmYHr2T/mcp

③ Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "polymerization-degree-calculator": {
      "url": "https://edge.vinkius.com/vk_preview_N3g9vZKsWPbhXwe8q9ZhnYEHtuQYWmSb1GmYHr2T/mcp"
    }
  }
}

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