Polyethylene was first synthesized by the German chemist Hans von Pechmann, who prepared it by accident in 1898 while investigating diazomethane. [12] [a] [13] [b] When his colleagues Eugen Bamberger and Friedrich Tschirner characterized the white, waxy substance that he had created, they recognized that it contained long −CH 2 − chains and termed it polymethylene.

Polyetheen (PE), verouderd polyethyleen, is een polymeer van etheen. Ook de verouderde naam wordt veel gebruikt, en is in feite nog de meest courante benaming bij de producenten en verbruikers van deze kunststof. Vroeger werd polyetheen ook als polymethyleen aangeduid omdat het ook gezien kan worden als een keten van aaneengeschakelde ...

The bimolecular fullerene organometallic matrix was created [from a] saturated solution of fullerene in benzene [which] was prepared by adding 450 mg of C 60 (99.8%) to 250 mL benzene. To this was added a solution of 500 mg CoCp(CO) 2 in 100 mL benzene. This mixture was capped and remained undisturbed for 5 d, at which time approximately 250 mg of a deep brown precipitate was collected.

A bottle made of LDPE. Polyethylene (also called polyethene, usually shortened to PE) is a thermoplastic.It is used in consumer goods, typical examples are transport wraps, and garbage bags.Other uses include pre-fabricated plastic parts, plastic tubes, and …

Jan 23, 2024 · Polyethylene is an important thermoplastic polymer, it is abbreviated as PE and is a lightweight, durable, synthetic resin, that has a variety of uses. It is a polymer of ethylene hence the name polyethylene and is the most commonly used plastic. The chemical formula for polyethylene is (C 2 H 4) n.Polyethylene is also called, Polyethene, and Polythene. In this article, we have covered, the ...

Polyethylene is primarily made up of the monomer ethylene. Ethylene is a chemical compound with the formula C 2 H 4.It is a gaseous hydrocarbon which can be generated by ethane cracking.

What types of polyethylene are there? There are many types of polyethilene. The main types of polyethylene include: 1. High-Density Polyethylene (HDPE): HDPE is a strong and rigid polyethylene variant. Melting Point: Approximately 120-130 degrees Celsius. Molar Mass: Typically ranges from 50,000 to 200,000 g/mol. Chemical Structure: HDPE consists of long linear chains with minimal branching.

Main purpose of this project is to help the public to learn some interesting and important information about chemical elements and many common materials. We realize that the basics in the materials science can help people to understand many common problems. Anyone can be able to come here, learn the basics of materials science, material properties and to compare these properties.

polyethylene (PE), Any of the polymers of ethylene, the largest class of plastics. Its simple basic structure, of ethylene monomers, can be linear (high-density and ultrahigh-molecular-weight polyethylene; HDPE and UHMWPE, respectively) or branched to a greater or lesser degree (low-density and linear low-density polyethylene; LDPE and LLDPE, respectively).

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