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Related Concept Videos

Olefin Metathesis Polymerization: Ring-Opening Metathesis Polymerization (ROMP)01:16

Olefin Metathesis Polymerization: Ring-Opening Metathesis Polymerization (ROMP)

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Ring-opening metathesis polymerization or ROMP involves strained cycloalkenes as starting materials. The mechanism of ROMP proceeds by reacting cycloalkene with Grubbs catalyst to give metallacyclobutane intermediate which undergoes a ring-opening reaction to form new carbene. The new carbene reacts with another molecule of cycloalkene. Repetition of these steps leads to the formation of an unsaturated open-chain polymer product. All these steps are reversible, however, relieving the ring...
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Anionic Chain-Growth Polymerization: Overview01:20

Anionic Chain-Growth Polymerization: Overview

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The polymerization process that involves carbanion as an intermediate is called anionic polymerization. It is also a type of addition or chain-growth polymerization. Anionic polymerization gets initiated by a strong nucleophile such as an organolithium or a Grignard reagent. The most commonly used initiator for anionic polymerization is butyl lithium. Monomers involved in anionic polymerization must possess a vinyl group bonded to one or two electron-withdrawing groups. For instance,...
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Types of Step-Growth Polymers: Polyesters01:20

Types of Step-Growth Polymers: Polyesters

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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.
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...
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Step-Growth Polymerization: Overview01:03

Step-Growth Polymerization: Overview

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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.
Many natural and synthetic polymers are produced by...
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Olefin Metathesis Polymerization: Overview01:13

Olefin Metathesis Polymerization: Overview

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Recently, the development of olefin metathesis polymerization advanced the field of polymer synthesis. Simply put, the reorganization of substituents on their double bonds between two olefins in the presence of a catalyst is known as the olefin metathesis reaction. The use of metathesis reaction for polymer synthesis is called olefin metathesis polymerization.
Ruthenium-based Grubbs catalyst is the most commonly used catalyst for olefin metathesis polymerization. Grubbs catalyst consists of a...
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Related Experiment Videos

Biodegradable stimuli-responsive polypeptide materials prepared by ring opening polymerization.

Yong Shen1, Xiaohui Fu, Wenxin Fu

  • 1Beijing National Laboratory for Molecular Sciences (BNLMS), Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China. fuwenxin@iccas.ac.cn zbli@iccas.ac.cn.

Chemical Society Reviews
|October 23, 2014
PubMed
Summary
This summary is machine-generated.

Stimuli-responsive polypeptides offer biocompatible solutions for biotechnology. This review covers recent advances in thermo-, redox-, photo-, and biomolecule-responsive polypeptides and their applications.

Related Experiment Videos

Area of Science:

  • Biotechnology and Biomaterials Science
  • Polymer Chemistry and Engineering

Background:

  • Stimuli-responsive polypeptides are gaining attention for their biocompatibility, biodegradability, and bioactivity.
  • These advanced biomaterials hold significant promise for various biotechnological applications.

Purpose of the Study:

  • To provide a tutorial review of recent progress in stimuli-responsive polypeptides over the past decade.
  • To highlight the design, synthesis, structure-property relationships, and applications of these polypeptides.

Main Methods:

  • Summarization of recent advancements in thermo-, redox-, photo-, and biomolecule-responsive polypeptides.
  • Brief introduction to the design and synthesis strategies for these responsive polymers.
  • Emphasis on structure-property correlations, particularly the role of polypeptide conformation.

Main Results:

  • Recent progress in developing polypeptides that respond to thermal, redox, photo, and biomolecular stimuli.
  • Understanding the influence of polypeptide structure and conformation on material properties.
  • Demonstration of applications in controlled drug release and tissue engineering.

Conclusions:

  • Stimuli-responsive polypeptides represent a dynamic field with significant potential in biotechnology.
  • Continued research into their design and application will drive innovation in areas like drug delivery and regenerative medicine.