Coordination Polymerization Calculator

The Coordination Polymerization Calculator is a scientifically accurate, interactive tool that computes **number average molecular weight (Mₙ)**, **degree of polymerization (DPₙ)**, **polydispersity index (PDI)**, **chain transfer**, and **stereoregularity** in **Ziegler-Natta coordination polymerization**. Based on the **Cossee-Arlman mechanism** and **Natta’s stereocontrol**, it models **insertion**, **propagation**, and **transfer** with precision. Ideal for **HDPE**, **iPP**, **bioplastics**, and **catalyst design**. Achieve lab-grade polymer control instantly. Explore sustainable materials at Agri Care Hub.

What is Coordination Polymerization?

**Coordination polymerization** is a chain-growth process using transition metal catalysts (Ti, Zr, Cr) to insert olefin monomers into a metal-carbon bond. Discovered by **Ziegler (1953)** and **Natta (1954)**, it produces:

• High MW polymers
• Controlled stereochemistry
• Narrow PDI (1.5–3.0)
• HDPE, LLDPE, iPP

Learn more on Coordination Polymerization Wikipedia.

Scientific Foundation: Cossee-Arlman

Degree of polymerization:

Molecular weight:

PDI ≈ 2.0 (single-site), 3.0 (multi-site)

Importance of Coordination Polymerization

Enables:

• HDPE: Pipes, films
• iPP: Automotive, packaging
• Metallocene: LLDPE, elastomers
• Biodegradable PLA: Mulch films
• Recycling: Controlled MW

In agriculture, **bioplastic mulch** degrades naturally — a focus at Agri Care Hub.

User Guidelines

Steps:

1. Enter monomer MW (e.g., ethylene = 28.05)
2. Enter [M]₀, [Cat], [H₂]
3. Set conversion and isotacticity
4. Click “Calculate Coordination Polymerization”

Use TiCl₄/AlEt₃, Zr metallocene, or Cr catalysts

When and Why to Use

Use when you need to:

• Design 500 kDa HDPE
• Control iPP tacticity
• Minimize PDI with H₂
• Teach stereoregular polymers
• Formulate biodegradable mulch

Purpose of the Calculator

To make **stereocontrol predictable**. It quantifies **insertion vs. transfer** and **tacticity impact**.

Example: Ethylene + TiCl₄/AlEt₃

• Monomer: 28.05 g/mol, 10 mol
• Catalyst: 0.0001 mol
• H₂: 0.001 mol
• DPₙ = 90,000, Mₙ = 2,525,000 g/mol

Applications in Agriculture

Coordination polymers enable:

• Biodegradable mulch films
• Controlled-release fertilizers
• Greenhouse plastics
• Seed trays

Learn more at Agri Care Hub.

Scientific Validation

Based on:

• Ziegler & Natta (1955)
• Cossee (1964), Arlman (1965)
• Boor “Ziegler-Natta Catalysts”
• Coordination Polymerization Wikipedia

Benefits

• 100% accurate
• Stereoregularity included
• Mobile-friendly
• No login
• SEO-optimized

Conclusion

The Coordination Polymerization Calculator is your essential tool for precision polymer engineering. From HDPE to biodegradable films, it delivers **stereocontrol and sustainability**. Start designing the future of plastics today with Agri Care Hub.