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Related Concept Videos

Types of Step-Growth Polymers: Polyesters01:20

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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.
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Step-growth or condensation polymerization is a stepwise reaction of bi or multifunctional monomers to form long-chain polymers. As all the monomers are reactive, most of the monomers are consumed at the early stages of the reaction to form small chains of reactive oligomers, which then combine to form long polymer chains in the late stages. Hence, the reaction has to proceed for a long time to achieve high molecular weight polymers.
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The cationic polymerization mechanism consists of three steps: initiation, propagation, and termination. In the initiation step of the polymerization process, the π bond of a monomer gets protonated by the Lewis acid catalyst, which is formed from boron trifluoride and water. The protonation of the π bond generates a carbocation stabilized by the electron‐donating group. In the propagation step, the π bond of the second monomer acts as a nucleophile and attacks the...
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Pure substances consist of only one type of matter. A pure substance can be an element or a compound. An element consists of only one type of atom, while a compound consists of two or more types of atoms held together by a chemical bond. Elements are classified as atomic or molecular based on the nature of their basic units.
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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...
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Thin Film Composite Silicon Elastomers for Cell Culture and Skin Applications: Manufacturing and Characterization
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Basics of Compounding: Compounding Films.

Loyd V Allen1

  • 1International Journal of Pharmaceutical Compounding. lallen@ijpc.com.

International Journal of Pharmaceutical Compounding
|March 24, 2017
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Summary
This summary is machine-generated.

Oral films offer a convenient drug delivery method. This article explores their applications, formulation, and quality control for effective drug absorption.

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Area of Science:

  • Pharmaceutical Sciences
  • Drug Delivery Systems

Background:

  • Films are a novel dosage form for oral drug delivery.
  • Their popularity is increasing due to ease of use and rapid dissolution.

Purpose of the Study:

  • To provide a comprehensive overview of oral film technology.
  • To discuss key aspects including formulation, quality control, and stability.

Main Methods:

  • Review of existing literature on oral films.
  • Discussion of physicochemical properties and preparation techniques.
  • Exploration of quality control and stability testing.

Main Results:

  • Oral films offer advantages in drug absorption and patient compliance.
  • Key considerations include composition, manufacturing, and stability.
  • Example formulations for compounding are provided.

Conclusions:

  • Oral films represent a versatile and convenient drug delivery system.
  • Further research into formulation and stability can optimize their use.