Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Free-Radical Chain Reaction and Polymerization of Alkenes02:35

Free-Radical Chain Reaction and Polymerization of Alkenes

7.9K
The conversion of alkenes to macromolecules called polymers is a reaction of high commercial importance. The structure of the polymer is defined by a repeating unit, while the terminal groups are considered insignificant. The average degree of polymerization represents the number of repeating units in the polymer molecule and is denoted by the subscript n.
7.9K
Hydrolysis01:15

Hydrolysis

105.7K
Overview
Hydrolysis is a chemical reaction in which the addition of water breaks down a polymer into its simpler monomer units. For example, peptides break into amino acids, carbohydrates into simple sugars, and DNA into nucleotides. Enzymes often facilitate these processes.
Hydrolysis Reverses Dehydration Synthesis
Complex carbohydrates can be broken down by breaking the bonds between individual sugar units. The reaction breaks a glycosidic bond as water is added to the compound. The...
105.7K
Radical Chain-Growth Polymerization: Mechanism01:09

Radical Chain-Growth Polymerization: Mechanism

2.6K
The radical chain-growth polymerization mechanism consists of three steps: initiation, propagation, and termination of polymerization. The polymerization initiates when a free radical generated from the radical initiator adds to the unsaturated bond in the monomer. The unpaired electron of the free radical and one π electron in the unsaturated bond creates a σ bond between the free radical and the monomer. As a result, the other π electron in the unsaturated bond converts this...
2.6K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Supramolecular Assembly System for Transdermal Penetration of Self-Assembled Short Peptides.

ACS applied bio materials·2026
Same author

A novel histone deacetylase inhibitor suppresses lipid accumulation and ameliorates atherosclerosis in apolipoprotein E-deficient mice.

Chemico-biological interactions·2026
Same author

SLC3A2-mediated BCAAs transport promotes airway inflammation and remodeling in chronic obstructive pulmonary disease via acetylation of PFN1.

Journal of advanced research·2026
Same author

Pre-ablation Dual-Energy CT-derived Extracellular Volume Fraction Predicts Recurrence After Radiofrequency Ablation in Non-paroxysmal Atrial Fibrillation.

The British journal of radiology·2026
Same author

Efficient Inference for Large Reasoning Models: A Survey.

IEEE transactions on pattern analysis and machine intelligence·2026
Same author

DES-mediated self-assembled polypeptides: Synergistic neuromuscular signaling inhibition for anti-aging.

Biomaterials advances·2026

相关实验视频

Updated: Jul 19, 2025

Extraction of Lignin with High β-O-4 Content by Mild Ethanol Extraction and Its Effect on the Depolymerization Yield
10:18

Extraction of Lignin with High β-O-4 Content by Mild Ethanol Extraction and Its Effect on the Depolymerization Yield

Published on: January 7, 2019

20.7K

机械洞察力 形成的残留固体在利格宁脱聚化中的机械洞察力

Kaiqi Lv1, Zhengjian Chen2, Jiaheng Zhang2

  • 1School of Chemistry and Chemical Engineering, State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510640, P.R. China.

ChemSusChem
|August 7, 2023
PubMed
概括

了解素炭的形成是提高其转化效率的关键. 这项研究显示,煤炭主要含有G单元,并通过新的甲桥梁形成,为更好的素增值提供了洞察力.

关键词:
瓜亚西尔 (guaiacyl) 是一个瓜亚西尔单元.热水脱聚合法 热水脱聚合红色的线性蛋白质 (lignin) 是一种这是一个机制机制.剩余的固体残留物

更多相关视频

Ultrafast Lignin Extraction from Unusual Mediterranean Lignocellulosic Residues
09:22

Ultrafast Lignin Extraction from Unusual Mediterranean Lignocellulosic Residues

Published on: March 9, 2021

6.6K
Designed for Molecular Recycling: A Lignin-Derived Semi-aromatic Biobased Polymer
10:22

Designed for Molecular Recycling: A Lignin-Derived Semi-aromatic Biobased Polymer

Published on: November 30, 2020

3.5K

相关实验视频

Last Updated: Jul 19, 2025

Extraction of Lignin with High β-O-4 Content by Mild Ethanol Extraction and Its Effect on the Depolymerization Yield
10:18

Extraction of Lignin with High β-O-4 Content by Mild Ethanol Extraction and Its Effect on the Depolymerization Yield

Published on: January 7, 2019

20.7K
Ultrafast Lignin Extraction from Unusual Mediterranean Lignocellulosic Residues
09:22

Ultrafast Lignin Extraction from Unusual Mediterranean Lignocellulosic Residues

Published on: March 9, 2021

6.6K
Designed for Molecular Recycling: A Lignin-Derived Semi-aromatic Biobased Polymer
10:22

Designed for Molecular Recycling: A Lignin-Derived Semi-aromatic Biobased Polymer

Published on: November 30, 2020

3.5K

科学领域:

  • 生物质转化和生物精炼
  • 有机化学 有机化学
  • 材料科学 材料科学 材料科学

背景情况:

  • 由于煤炭的形成,红素的转化效率受到限制,这阻碍了有效的生物质利用.
  • 对燃烧途径的更深入的机制理解对于优化氨酸脱聚合是至关重要的.

研究的目的:

  • 阐明在素脱聚合过程中炭形成的基本机制.
  • 识别有助于碳生成的素结构单元和反应途径.

主要方法:

  • 作为一个模型反应的素的热水分解.
  • 碳化合物组成和结构的表征.
  • 密度函数理论 (DFT) 计算来验证拟议的机制.

主要成果:

  • 碳酸盐的形成与G-氨酸单位和S-氨酸的脱氧化有关.
  • 在素芳香环之间形成新的甲桥梁,导致反弹性炭.
  • -宁优先形成挥发性单醇,而不是碳.

结论:

  • 提出了在红素水热分解过程中炭火形成的详细机制.
  • 控制木质素的组成和反应条件可以减轻煤炭的形成,提高碳的利用率.
  • 这项研究为开发更有效的素价值化策略提供了基础.