Big Chemical Encyclopedia

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

Articles Figures Tables About

Addition polymers summary tables

In the polymer literature each of the five quantities listed above is encountered frequently. Complicating things still further is the fact that a variety of concentration units are used in actual practice. In addition, lUPAC terminology is different from the common names listed above. By way of summary, Table 9.1 lists the common and lUPAC names for these quantities and their definitions. Note that when

[Pg.593]

In summary, then, design with polymers requires special attention to time-dependent effects, large elastic deformation and the effects of temperature, even close to room temperature. Room temperature data for the generic polymers are presented in Table 21.5. As emphasised already, they are approximate, suitable only for the first step of the design project. For the next step you should consult books (see Further reading), and when the choice has narrowed to one or a few candidates, data for them should be sought from manufacturers data sheets, or from your own tests. Many polymers contain additives - plasticisers, fillers, colourants - which change the mechanical properties. Manufacturers will identify the polymers they sell, but will rarely disclose their... [Pg.226]

Table 3.4 Summary of polymer/additive dissolution and extraction techniques"... [Pg.63]

Table 7 gives a summary of qualitative performances and problems encountered for simple shear and uniaxial elongational flows, using the Wagner and the Phan Thien Tanner equations or more simple models as special cases of the former. Additional information may also be found in papers by Tanner [46, 64]. All equations presented hereafter can be cast in the form of a linear Maxwell model in the small strain limit and therefore are suitable for the description of results of the linear viscoelasticity in the terminal zone of polymer melts. [Pg.192]

A summary of some of the polymer-derived SiCN fibers is presented in Table 1. This table includes the polymer precursor systems for these fibers, the compositional data, and the developing companies. Reliable elemental analyses of these fibers are often diflScult to obtain because of incomplete sample combustion. In addition, many of these fiber compositions are being changed as their development proceeds. [Pg.598]

Plastic materials are widely used in numerous industries. The physiochemical nature of these materials provides a multitude of diverse products with their necessary, desirable performance characteristics. Commercial plastics are very complex materials. In addition to the various base polymers, commercially viable plastics contain a number of compounding ingredients (additives) whose purpose is to give the material its desired physical and/or chemical properties. Table 1 provides a brief summary of the types of additives typically encountered in commercial polymer systems. [Pg.380]

A summary of polymers and their blends used for greenhouse applications are presented in Table 5.1. The EVA/LDPE blends show superior UV resistance as compared to LLDPE or LLDPE/LDPE blends (50/50). Additionally, the EVA also serves as infrared or thermic barrier film. [Pg.188]

Given the detailed background of MBP process and other considerations discussed previously, this section aims to provide additional tools for troubleshooting in case a problem arises. The key components of developing MBP depend on three components API, polymer, and process. Troubleshooting needs to be evaluated with respect to its impact on the critical quality attributes as well as the process. Summary of various processes and the key considerations is provided in Table 11.3. [Pg.368]

In addition, more synthesis on PBl polymers has been made by using a variety of diacids with active groups such as pendant amino [100, 101], carboxyl [102-104], sulfonic acid [105-107], hydroxyl [83, 108, 109], tert-butyl [5] or nitrile [110]. These functional groups are expected to be reactive with e.g., cross-linking agents containing epoxy or alkyl halide moieties, which provide polymers potential to be further modified for superior properties of PBl membranes. A comprehensive summary of different PBl main-chain stracture derivatives considered for fuel cell applications is given in Table 7.1. [Pg.159]

Staining of polymers is an important part of sample preparation for electron microscopy as it provides the enhanced contrast required to image the structures. There are few staining techniques that work for a range of polymers and there are several stains with limited applicability. For many polymers there is no proven stain, and thus preparative treatments must be found by experimentation. This summary will provide a listing (Tables 4.1-4.3) of those polymers which have been shown to be stained by the various reagents described in this section. In addition, several stains that are applicable for only a few polymers are also listed here, even though they were not fully described. [Pg.109]

Adhesion of restorative dental biomaterials to tooth substrates is primarily based on micromechanical interlocking of resin monomers to the components of the hard tissue. In addition to micromechanical retention, chemical bonding can be achieved via functional monomers, which are able to chemically and mechanically bond to the tooth [10, 11]. While commonly classified as generations by industry, the most appropriate way to classify the current adhesive systems is by the dentin surface treatment and application techniques. The application techniques recommended by manufacturers is greatly influenced by the composition of the adhesive polymer [12]. A summary of the current adhesive systems is shown in Table 9.1. [Pg.268]

A summary of Macosko s results is given in Table 11, adapted from Reference 213, while Figure 18, also taken from Reference 213, shows the adiabatic temperature rise data for the block copolymer formation and the excellent agreement with Malkin s model. The additional temperature rise at longer times is due to polymer crystallization, underlining that the two phenomena, polymerization and crystallization, can be kept well separated by choosing proper experimental setup, thus, avoiding any superposition effect. [Pg.378]


See other pages where Addition polymers summary tables is mentioned: [Pg.42]    [Pg.112]    [Pg.142]    [Pg.916]    [Pg.134]    [Pg.579]    [Pg.108]    [Pg.214]    [Pg.31]    [Pg.134]    [Pg.255]    [Pg.144]    [Pg.464]    [Pg.41]    [Pg.239]    [Pg.134]    [Pg.763]    [Pg.551]    [Pg.579]    [Pg.269]    [Pg.65]    [Pg.746]    [Pg.135]    [Pg.380]    [Pg.395]    [Pg.130]    [Pg.1070]    [Pg.1070]    [Pg.203]    [Pg.95]    [Pg.301]    [Pg.435]    [Pg.34]    [Pg.823]    [Pg.48]    [Pg.91]    [Pg.11]   
See also in sourсe #XX -- [ Pg.454 , Pg.456 ]




SEARCH



Addition polymer table

Addition polymers polymer

Polymer additives

Polymer table

Polymers, addition

Summary tables

© 2024 chempedia.info