Polymer Basics

Monomer 1 Monomer 2 Polymer Basic unit of the polymer Preparation examples, literature... [Pg.50]

This is the simplest type of polymerization, and it is used to make specialty polymers. Basically one mixes a monomer at initial concentration [M]o and an initiator at initial concentration [A], and allows reaction to occur. The steps are... [Pg.445]

Fulcrand, H. et al., Electrospray contribution to structural analysis of condensed tannin oligomers and polymers, Basic Life Set, 66, 223, 1999. [Pg.131]

Polymers basic products, PA catalysts, dispersible polymers, cyclodextrin, specialty chemicals ... [Pg.355]

The book is divided into three parts. The first part covers polymer fundamentals. This includes a brief discussion of the historical development of polymers, basic definitions and concepts, and an overview of the basis for the various classifications of polymers. It also examines the requirements for polymer formation from monomers and discusses polymer structure at three levels primary, secondary, and tertiary. The relationship between the structure of the monomers and properties of the resulting polymer is highlighted. This section continues with a discussion of polymer modification techniques. Throughout the discussion, emphasis is on the structure-property relationship and several examples are used to illustrate this concept. [Pg.3]

Polymers are grafted on polymers Basically all polymer-on-polymer systems are insulators. The use of state-of-the-art surface analysis... [Pg.79]

Polymer blending is to combine two or more components and has superior mechanical, optical, or thermal properties than these individual polymers. From the practical and economical points of view, polymer blending from existing polymers is the most effective and convenient route to create new and useful materials with greater versatility and flexibility than the development of new polymers. Basically, three different types of blends can be distinguished completely miscible, immiscible, and partially miscible blends [1,2] as shown in Figure 2.1. [Pg.27]

Shape memory polymers basically have two structural features—that is, the cross-links that determine the permanent shape and the reversible segments acting as a switching phase. Molecular mechanisms describing thermally triggered shape memory process are shown in Figure 4.1. In the figure, is the thermal transition temperature of the reversible phase... [Pg.127]

Research Association for Polymer Basic Technology (Toray Industries,Inc.Plastics Research Laboratories 9-1,Oe-cho,Minato-ku,Nagoya,455 JAPAN)... [Pg.261]

Tsyurupa MP, Davankov VA (2002) Hypercrosshnked polymers basic principle of preparing the new class of polymeric materials. React Funct Polym 53 193-203... [Pg.138]

Hyperbranched polymers basically have poor membrane-forming ability due to the lack of chain entanglement. Studies on the enhancement of membrane-forming ability for hyperbranched polymers suggested to use the crosslink approach at terminal functional groups and cross-linkable components [1,18]. Preparation of the crosslink polymers was... [Pg.10]

Porous polymer Basic structure and connectivity Pore size (A°) BET surface area (m /g) Principle applications... [Pg.6]

Unfortunately, this rule of thumb is not universal and additional formulating influences such as salts, surfactants, emulsifiers, and other cosmetically important components change the rules. Additionally, factors such as pH, temperature, and the sequence of formulating can drastically affect the behavior of a particular polymer. One typically finds that cationic polymers favor acidic mediums and anionic polymers basic mediums, while am-... [Pg.236]

Electronically Conducting Polymers Basic Methods of Synthesis and Characterization... [Pg.167]

Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...