Polymer gels

Trong nghiên cứu này, TiO2 được biến tính với carbon aerogel (CA) có nguồn gốc polymer hữu cơ làm vật liệu xúc tác quang phân hủy hơi formaldehyde trong không khí. Các mẫu TiO2/CA được tổng hợp ở điều kiện nhiệt độ nung và các tỷ lệ giữa TiO2 và CA khác nhau bằng phương pháp sol-gel.

8p visergeyne 18-06-2024 2 1   Download

In this study, we synthesized hydroxyapatite (HA) on polyvinyl alcohol/TiO2 (PVA/TiO2) in which TiO2 was prepared by the sol-gel method. HA was formed by immersing the membrane in the simulated body fluid (SBF) solution. We improved the mechanical strength of the membranes by adding glutaraldehyde (GA) combining with heat treatment to cross-link the polymer network.

14p dianmotminh02 03-05-2024 1 1   Download

The curing agent content plays an important role in the synthesis of polymer composites, as it determines the quality and durability of these materials. Cyanethyl-diethylenetriamine (CEDETA) was used as the curing agent for epoxy epikote 828. The effect of CEDETA content on the gel content and fracture toughness (KIC) of epoxy resin, as well as the effect of reinforcing fabric on the mechanical properties of composite materials was studied.

8p dianmotminh02 03-05-2024 2 2   Download

Ebook "Gel chemistry: Interactions, structures and properties" covers various molecular, metal-organic, dynamic covalent, polymer and other gels, focusing on their driving interactions, structures and properties. It consists of six chapters demonstrating interesting examples of these gels, classified by the type of driving interaction, and also discusses the effect of these interactions on the gels’ structures and properties. The book offers an interesting and useful guide for a broad readership in various fields of chemical and materials science.

217p tracanhphuonghoa1007 22-04-2024 2 2   Download

Ebook "Supramolecular polymer networks and gels" presents critical reviews of the present and future trends in polymer and biopolymer science. It covers all areas of research in polymer and biopolymer science including chemistry, physical chemistry, physics, material science. The thematic volumes are addressed to scientists, whether at universities or in industry, who wish to keep abreast of the important advances in the covered topics.

293p tracanhphuonghoa1007 22-04-2024 6 3   Download

Ebook "Polymeric hydrogels as smart biomaterials" is concerned with polymeric hydrogels, which are considered as one of the most promising types of new polymer-based materials. Each chapter in this book describes a selected class of polymeric hydrogels, such as superabsorbent hybrid nanohydrogels, conducting polymer hydrogels, polysaccharide-based or protein-based hydrogels, or gels based on synthetic polymers.

240p tracanhphuonghoa1007 22-04-2024 4 3   Download

Ebook "Polymeric cryogels: Macroporous gels with remarkable properties" is intended to review the principles of cryotropic gelation processes as well as the advances made during the past two decades in the preparation and application of cryogels based on both synthetic and natural polymers.

333p tudohanhtau1006 29-03-2024 5 1   Download

Ebook "In-situ gelling polymers: For biomedical applications" presents the research involving in situ gelling polymers and can be used as a guidebook for academics, industrialists and postgraduates interested in this area. This work summaries the academic contributions from the top authorities in the field and explore the fundamental principles of in situ gelling polymeric networks, along with examples of their major applications.

229p tudohanhtau1006 29-03-2024 4 1   Download

Ebook "Click triazoles (Topics in Heterocyclic chemistry, Volume 28)" r is the synthesis of 1,4,5-trisubstituted triazoles by a variety of methods including condensation reactions and rearrangements, selective preparation of trisubstituted triazoles from disubstituted precursors and formal [3+2] cycloaddition reactions involving internal alkynes.

245p coduathanh1122 27-03-2024 7 1   Download

Tóm tắt Luận án Tiến sĩ Hóa hữu cơ "Nghiên cứu chế tạo và đặc trưng tính chất của tổ hợp carrageenan/collagen (từ vảy cá) mang dược chất allopurinol" với mục tiêu xây dựng được quá trình trích ly collagen từ vảy cá nước ngọt Việt Nam; chế tạo được tổ hợp polyme thiên nhiên carrageenan/collagen (từ vảy cá) chứa ALP dạng màng và dạng hạt bằng phương pháp dung dịch và phương pháp gel – ion hóa.;...

27p gaupanda015 01-03-2024 3 2   Download

Ebook "Gels: Structures, properties, and functions - Fundamentals and applications" provides readers with contents including: competitive hydrogen bonds and cononsolvency of poly(n-isopropylacrylamide)s in mixed solvents of water/methanol; rheological properties of solutions of a polyampholytic block copolymer; helix-coil transition and association behavior of water-soluble polypeptides having hydrophobic alkyl side chains;...

204p manmanthanhla0201 26-02-2024 2 1   Download

Ebook "Porous polymeric bioresorbable scaffolds for tissue engineering" discusses the manipulation of polymer chemical structure and composition to tune scaffold physical properties, and optimization of scaffold 3D architecture by a smart use of both fabrication techniques. The multidisciplinary nature of this research is imperative in pursuing the challenge of tissue regeneration successfully.

132p manmanthanhla0201 26-02-2024 1 1   Download

Ebook "Enzyme stabilization and immobilization: Methods and protocols (Second edition)" introduces the reader to the field of enzyme stabilization and the different theories of enzyme stabilization, including the use of immobilization as a stabilization technique. The first part of the book focuses on protocols for enzyme stabilization in solutions including liposome formation, micelle introduction, crosslinking, and additives.

231p lucchinguyen 28-12-2023 6 3   Download

Ebook "Introduction to industrial polypropylene: Properties, catalysts, processes" provide chemists, engineers and students an introduction to the essentials of industrial polypropylene— what it is, how it is made and fabricated, how it is characterized, the markets it serves, and its environmental fate. Technical aspects are described in a straightforward way with minimal discussion of esoteric theory such that a person with a modicum of training in chemistry should be able to grasp.

346p loivantrinh 29-10-2023 5 3   Download

Ebook "Introduction to polymer physics" gives a clear and concise introduction to the modern theory of polymer physics. It describes basic concepts and methods and explains the statistical properties of the assembly of chain-like molecules; topics include scaling theory, concentration fluctuation, gels, and reptation. This is an ideal volume for graduate students and advanced undergraduates in polymer physics.

126p loivantrinh 29-10-2023 3 2   Download

In ebook "Scaling concepts in polymer physics" a noted physicist explains the radical changes that have taken place in this exciting and rapidly developing field.Pierre-Gilles de Gennes points out the three developments that have been essential for recent advances in the study of large-scale conformations and motions of flexible polymers in solutions and melts.

324p loivantrinh 29-10-2023 4 2   Download

Ebook "Polyelectrolytes: Thermodynamics and rheology" offers a valuable reference source to graduate and post graduate students, engineering students, research scholars polymer engineers from industry. The book provides the reader with current developments of theoretical models describing the thermodynamics polyelectrolytes as well as experimental findings. A particular emphasis is put on the rheological description of polyelectrolyte solutions and hydrogels.

388p loivantrinh 29-10-2023 8 2   Download

Ebook "The structure and rheology of complex fluids" describes the microstructures of polymeric, colloidal, amphiphilic, and liquid crystalline liquids, and the relationship between microstructure and mechanical and flow properties. This book provides illustrations, practical examples, and worked problems. It serves as both a textbook for a graduate course and a research monograph.

682p loivantrinh 29-10-2023 10 2   Download

Trong nghiên cứu "Tổng hợp gel compozit nhạy nhiệt chứa hydrogel nano compozit ứng dụng để dập tắt đám cháy loại A", một loại gel compozit được sử dụng để dập tắt đám cháy loại A đã được tạo ra bằng cách sử dụng methylcellulose, polyme siêu hấp thụ và bentonit nano. Gel compozit được hình thành thông qua liên kết hydro giữa ba thành phần trên. Gel compozit có tính chất nhạy nhiệt và được ứng dụng để dập tắt đám cháy loại A. Mời các bạn cùng tham khảo!

8p giangnhanly 02-10-2023 5 2   Download

Bài viết Nghiên cứu chế tạo màng polymer kháng khuẩn trên cơ sở tinh dầu sả và chitosan nói về việc chế tạo và xác định khả năng kháng khuẩn của màng poly(vinyl alcohol) (PVA) phối hợp tinh dầu sả và chitosan. Hệ phân tán nano chitosan chứa tinh dầu được tạo ra bằng phương pháp gel hóa ion rồi phối trộn với dung dịch PVA trước khi tạo màng bằng phương pháp đúc từ dung dịch.

4p visteverogers 23-06-2023 9 6   Download