Chế Tạo Nylon 6,10 (Thủ Thuật Sợi Nylon)

Kéo sợi nylon liên tục từ bề mặt phân cách

Organic Synthesis Intermediate (High School) 30 phút ~$18,00

Mục tiêu

Tổng hợp nylon 6,10 tại bề mặt phân cách của hai dung dịch không tan lẫn và kéo sợi liên tục từ cốc.

Bối cảnh

The nylon rope trick is a dramatic demonstration of interfacial polymerization. When a solution of hexamethylenediamine (aqueous) is layered with sebacoyl chloride (in hexane), nylon forms at the interface. The polymer film can be continuously pulled out as a thread or rope.

Cảnh báo an toàn

  • Hexane is highly flammable — no open flames
  • Sebacoyl chloride is corrosive and moisture-sensitive
  • Hexamethylenediamine is an irritant
  • Work in a fume hood

PPE cần thiết

goggles gloves lab_coat

Vật liệu

  • Hexamethylenediamine (3 g)
    Dissolved in 50 mL water
  • Sebacoyl chloride (2 mL)
    In 50 mL hexane
  • Sodium hydroxide (NaOH) (1 g)
    Added to the aqueous layer
  • Hexane (50 mL)
    Solvent for acid chloride

Thiết bị

250 mL beaker Forceps or glass rod Paper towel

Quy trình

1

Prepare the aqueous solution: dissolve 3 g hexamethylenediamine and 1 g NaOH in 50 mL water in the beaker.

3 phút Irritant — avoid contact
2

Carefully layer the sebacoyl chloride/hexane solution on top of the aqueous solution. Do not mix.

3 phút Work in fume hood
3

Observe the nylon film forming at the interface between the two layers.

2 phút
4

Using forceps, gently pull the nylon film from the center of the interface. A continuous strand should follow.

5 phút
5

Wind the nylon strand around a glass rod, continuously pulling from the interface.

10 phút
6

Rinse the collected nylon with water and blot dry. Examine the fiber properties.

5 phút

Kết quả dự kiến

A continuous strand of nylon can be pulled from the interface for several meters. The polymer is white, slightly elastic, and strong. The reaction continues as long as both reagents are present.

Dọn dẹp

Allow remaining solution to react. Dispose of hexane waste in organic solvent waste. Neutralize the aqueous layer. Rinse all glassware.

Chi tiết

Danh mục
Organic Synthesis
Độ khó
Intermediate (High School)
Thời gian
30 phút
Chi phí ước tính
$18,00
Số bước
6
Vật liệu
4

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Frequently Asked Questions

What is the objective of Chế Tạo Nylon 6,10 (Thủ Thuật Sợi Nylon)?
Tổng hợp nylon 6,10 tại bề mặt phân cách của hai dung dịch không tan lẫn và kéo sợi liên tục từ cốc.
How difficult is Chế Tạo Nylon 6,10 (Thủ Thuật Sợi Nylon)?
This experiment is rated as Intermediate (High School). It takes approximately 30 minutes to complete.
What safety precautions are needed for Chế Tạo Nylon 6,10 (Thủ Thuật Sợi Nylon)?
Key safety precautions include: Hexane is highly flammable — no open flames; Sebacoyl chloride is corrosive and moisture-sensitive; Hexamethylenediamine is an irritant.
What materials are needed for Chế Tạo Nylon 6,10 (Thủ Thuật Sợi Nylon)?
The main materials required are: Hexamethylenediamine, Sebacoyl chloride, Sodium hydroxide (NaOH), Hexane.
What results should I expect from Chế Tạo Nylon 6,10 (Thủ Thuật Sợi Nylon)?
A continuous strand of nylon can be pulled from the interface for several meters. The polymer is white, slightly elastic, and strong. The reaction continues as long as both reagents are present.