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Molecular Weight of Step-Growth Polymers01:08

Molecular Weight of Step-Growth Polymers

2.6K
Step growth polymerization involves bi or multifunctional monomers. Bifunctional monomers react to form linear step growth polymers, whereas multifunctional monomers react to form non-linear or branched polymers.
As the step-growth polymerization involves step-wise condensation of monomers, the molecular weight also builds up eventually. Consequently, high molecular weight polymers are obtained at the late stages of the polymerization, where 99% of monomers have been consumed.
The extent of the...
2.6K
Polymers02:34

Polymers

39.2K
The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the...
39.2K
Polymers02:34

Polymers

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22.9K
Polymers: Molecular Weight Distribution01:10

Polymers: Molecular Weight Distribution

4.2K
For any given polymer, the weight average molecular weight (Mw) is higher than, if not equal to, the number average molecular weight (Mn). The only situation in which the weight average molecular weight and the number average molecular weight are equal is when a polymer consists only of chains with equal molecular weight. However, this never happens in a synthetic polymer, since it is difficult to control the polymerization process up to a molecular level with accuracy to a hundred percent.
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Types of Step-Growth Polymers: Polyesters01:20

Types of Step-Growth Polymers: Polyesters

2.4K
The introduction of polyesters has brought major development to the textile industry. The wrinkle-free behavior of polyester blends has eliminated the need for starching and ironing clothes.
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the polymer...
2.4K
Characteristics and Nomenclature of Copolymers01:24

Characteristics and Nomenclature of Copolymers

3.0K
Copolymers are the products obtained from the polymerization of multiple monomer species. So, in a polymer chain itself, there can be multiple repeating units that come from different monomers. The process of synthesizing a polymer from different monomer species is called copolymerization. When two monomers are involved, the polymer is known as a bipolymer. Polymers with three and four monomers are termed terpolymers and quaterpolymers, respectively. Figure 1 depicts the copolymerization of...
3.0K

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Updated: Nov 10, 2025

Author Spotlight: Exploring Self-Assembled MOF-Polymer Composites
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Author Spotlight: Exploring Self-Assembled MOF-Polymer Composites

Published on: June 14, 2024

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Editorial for the Special Issue: Functional Polymer Composites.

Phuong Nguyen-Tri1,2, Tuan Anh Nguyen3

  • 1Département de Chimie, Biochimie et Physique, Université du Québec à Trois-Rivières (UQTR), Trois-Rivières, QC G8Z 4M3, Canada.

Polymers
|April 3, 2021
PubMed
Summary
This summary is machine-generated.

Functional polymer composites are advancing rapidly in creation and application. These materials offer exciting possibilities across various scientific fields.

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Area of Science:

  • Materials Science
  • Polymer Chemistry

Background:

  • Functional polymer composites are experiencing rapid advancements.
  • Research is progressing in their synthesis, design, preparation, and processing.

Discussion:

  • The study highlights the significant strides in functional polymer composites.
  • It covers the entire lifecycle from creation to application.

Key Insights:

  • Functional polymer composites show great promise for diverse applications.
  • Innovations in synthesis and processing are key drivers.

Outlook:

  • Future research will likely focus on novel applications and enhanced material properties.
  • Continued development is expected in the field of functional polymer composites.