Synthesis and General Properties

As mentioned above, synthesis of A-B and B-A-B types may be accomplished by the living polymer technique, as follows (see Section 4.1) (Finaz et al, 1962 O Malley et al, 1969 Szwarc, 1956 Szwarc et al, 1956)  

In equation (6.1), a simple anion is employed, while in equation (6.2), a dianion is used to generate both B blocks simultaneously. Other block structures may be synthesized by different techniques. For example, the A-B-A type may be prepared by the reaction of PS containing terminal acyl chloride groups with poly(ethylene glycol) (Finaz et ai, 1962). 

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This brief introduction to the synthesis and general properties of interpenetrating polymer networks demonstrates that IPNs are complex multicomponent polymer... 

The majority of research which is discussed in this volume deals with the Nafion brand perfluorosulfonate polymers, manufactured by E. I. du Pont de Nemours and Co.. These materials were developed during the middle 1960 s, and have been available in various forms for study during the past few years. The synthesis and general properties of Nafion membranes are summarized... 

Synthesis and General Properties. Sulfur tetrachloride, a pale yellow crystalline solid, is prepared best by chlorination of sulfur dichloride at —78° (I). Selenium tetrachloride also pale yellow is available corn-... 

This chapter deals with the synthesis and general properties of homo- and heterometallic alkoxides that are or might be used in chemical routes to electrooptical ceramic materials. Some considerations concerning structure, reactivity, and tailoring of their properties are also given. Emphasis is given to the most recent results. 

Pepper, K. W. and Hale, D. K. Ion-Exchange Resins. Structure, Synthesis and General Properties. S.C.I. Conference on Ion-Exchange and Its Applications, London (April 1954). 

Nano-clays are also discussed, as they are starting to show commercial promise. For completeness, fillers like antimony oxide, which work in combination with other additives, such as halogens, are also briefly discussed. This chapter concentrates on fire retardant effects, the synthesis and general properties of the various fire retardant fillers having already been described in Chapter 2. 

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