# Polymer

> Polymer science fundamentals

- Skill: `ffsshhttiikk/polymer` (Agent Skill)
- Install (CLI): `npx skillmds@latest add ffsshhttiikk/polymer`
- Raw SKILL.md: https://api.skillmd.com/api/skills/ffsshhttiikk/polymer/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- License: MIT
- Author: ffsshhttiikk (https://skillmd.com/u/ffsshhttiikk)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/ffsshhttiikk/polymer

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## What I do

- Explain polymer structure and properties
- Describe polymerization mechanisms
- Discuss polymer classification
- Analyze polymer applications
- Explain polymer processing
- Connect structure to properties

## When to use me

- When learning polymer basics
- When explaining polymer properties
- When selecting materials
- When preparing educational content

## Key Concepts

### Polymer Classification

**Origin**
- Natural: Cellulose, starch, proteins, DNA
- Synthetic: Nylon, polyethylene, polystyrene
- Semi-synthetic: Cellulose nitrate

**Structure**
- Linear: Single chain
- Branched: Side chains
- Crosslinked: Network
- Dendrimers: Hyperbranched

### Polymer Structure

```python
# Polymer types by thermal behavior
polymer_types = {
    'thermoplastics': 'Soften on heating (PE, PP, PVC)',
    'thermosets': 'Crosslink on heating (epoxy, phenol-formaldehyde)',
    'elastomers': 'Elastic deformation (rubber, silicone)'
}

# Amorphous vs Crystalline
structure_types = {
    'amorphous': 'Random coil, no order (glass below Tg)',
    'semicrystalline': 'Ordered regions in amorphous matrix (Tm > Tg)',
    'crystalline': 'Highly ordered (rare in polymers)'
}
```

### Mechanical Properties

- Tensile strength
- Elastic modulus
- Elongation at break
- Impact resistance
- Hardness
- Creep resistance

### Common Applications

- Packaging: PE, PP, PET
- Fibers: Nylon, polyester
- Coatings: Acrylics, epoxies
- Adhesives: PVA, cyanoacrylate
- Elastomers: Natural rubber, silicone