Zur Chemie des Buchenholzes: Acetylierung des Buchenholzes und Spaltung des Acetyl‐buchenholzes

Suida, Hermann; Titsch, H.

doi:10.1002/cber.19280610802

Cited by 15 publications

(4 citation statements)

References 10 publications

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“…Suida and Titsch (146,147) acetylated red beech with acetic anhydride but were unable to separate the product into carbohydrate acetates and lignin acetate without a subsequent hydrolysis. Treatment of wood with a mixture of acetic anhydride and acetic acid in the presence of different catalysts was extensively studied by Friese.…”

Section: The Acetolysis Of Woodmentioning

confidence: 97%

A Lignin-Carbohydrate Complex in Wood A Review of the Literature

Merewether¹

1957

Holzforschung

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Section: The Acetolysis Of Woodmentioning

confidence: 97%

A Lignin-Carbohydrate Complex in Wood A Review of the Literature

Merewether¹

1957

Holzforschung

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“…A particularly promising area of application is the modification of soft and fast-growing types of wood to optimize their properties so that they can be used as a substitute for harder and slow-growing tropical wood to protect the rainforest . Therefore, the chemical modification of wood has attracted more and more interest in recent years, which is evident from a distinct increase in fundamental research and development leading to a number of industrially used processes. ,,,− Especially, the well-known acetylation of wood (ACCOYA process), ,,,− implementation with the urea derivative DMDHEU (BELMADUR process), ,,− and impregnation with furfuryl alcohol (KEBONY process) ,,,,, have been studied and optimized extensively. From a chemical point of view, these methods are fairly simple and can be easily implemented in terms of process technology: The wood modifications are carried out in vacuum tanks with subsequent drying.…”

Section: Introductionmentioning

confidence: 99%

Surface Tuning of Wood via Covalent Modification of Its Lignocellulosic Biopolymers with Substituted Benzoates─A Study on Reactivity, Efficiency, and Durability

et al. 2021

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Chemical modification of wood applying benzotriazolyl-activated carboxylic acids has proven to be a versatile method for the durable functionalization of its lignocellulosic biopolymers. Through this process, the material properties of wood can be influenced and specifically optimized. To check the scope and limitations of this modification method, various benzamide derivatives with electron-withdrawing (EWG) or electron-donating (EDG) functional groups in different positions of the aromatic ring were synthesized and applied for covalent modification of Scots pine ( Pinus sylvestris L.) sapwood in this study. The bonded amounts of substances (up to 2.20 mmol) were compared with the reactivity constants of the Hammett equation, revealing a significant correlation between the modification efficiency and the theoretical reactivity constants of the corresponding aromatic substitution pattern. The successful covalent attachment of the respective substituted benzamides was proven by attenuated total reflection infrared (ATR-IR) spectroscopy, while the stability of the newly formed ester bond was proven in a standardized leaching test.

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“…These include (inter alia) acetylated wood, thermally modified wood, furfurylated wood, silicon-modified wood, Royal-treated wood, and wood-plastic composites (WPC), in addition to natural durable species as larch, and tropical hardwoods. Some of the technologies and alternative durable species used to produce these materials are not new, for example Tiemann (1915) reported effects of heat treatment, while Fuchs (1928), Horn (1928) and Suida and Titsch (1928) all reported effects of acetylation. Since then there has been substantial further technological development, some of it based on the early work by Stamm and co-workers in the 1930s-50s at the Forest Products Research Laboratory in Madison, Wisconsin, USA (Hill, 2006).…”

Section: Introductionmentioning

confidence: 99%

Untitled

2017

BPB

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The range of value added decking and cladding products currently available on the Swedish market is probably greater than ever. Although, there are also both opportunities and threats for further development in this industry sector, the extant research has not addressed this topic. The present paper fills this gap through conducting a qualitative exploratory case study undertaken to describe the structure and macro factors influencing the industry. The study integrates PESTEL (Political, Economic, Social, Technological, Environmental and Legal) framework with Porter's Five Forces of Competitive Position. Data for the PESTEL analysis were collected from industry experts and triangulated through secondary sources. Data for the Five Forces analysis were collected through qualitative interviews. The findings indicate that PESTEL factors have neutral or positive influences on the industry, while the Five Forces analysis indicates that the strength of buyers' power and threats from substitutes may pose future challenges. Furthermore, the findings indicate that the industry has potential for further growth and warrants attention from various players that are not yet involved.

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Zur Chemie des Buchenholzes: Acetylierung des Buchenholzes und Spaltung des Acetyl‐buchenholzes

Cited by 15 publications

References 10 publications

A Lignin-Carbohydrate Complex in Wood A Review of the Literature

A Lignin-Carbohydrate Complex in Wood A Review of the Literature

Surface Tuning of Wood via Covalent Modification of Its Lignocellulosic Biopolymers with Substituted Benzoates─A Study on Reactivity, Efficiency, and Durability

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