---
title: Polymer brackets
url: https://www.moldraw.com/docs/drawing/how-to-draw-polymer-repeat-unit-brackets/
section: Draw structures
updated: 2026-10-11
publisher: LabCanvas
---

# Polymer brackets

> Select the repeat unit, then click the Brackets tool. Click the small n to change the number of units.

1. Select two or more atoms of the repeat unit.
2. Click **Brackets** in the left rail.
3. Click the subscript to type n, m or a number.

Click Brackets again for more types. You get polymer n, copolymer m and parenthesis (CH₂)n. Brackets move with the structure.

## Questions and answers

**How do I draw a polymer repeat unit?**
Select the unit and click Brackets. Then edit the subscript.