谷类
发表于 2025-3-25 05:12:42
Sierra LeoneThe Colony of Sierra Leone originated in the sale and cession, in 1787, by native chiefs to English settlers, of a piece of land intended as a home for natives of Africa who were waifs in London, and later it was used as a settlement for Africans rescued from slave-ships. The hinterland was declared a British protectorate on 21 Aug. 1896.
反感
发表于 2025-3-25 08:12:59
Radical Polymerization,This chapter introduces the fundamental concepts of radical polymerization. Typical monomers, initiators, and transfer and termination reagents are discussed. Furthermore, the kinetic equations, the degree of polymerization, and molar mass distribution are derived.
厨房里面
发表于 2025-3-25 14:28:16
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征服
发表于 2025-3-25 19:31:24
Amorphous Polymers,The fundamental principles of “amorphous” polymers were introduced in ► Chap. .. Some of their particular properties are described in more detail in this chapter.
伟大
发表于 2025-3-25 20:59:58
Partially Crystalline Polymers,As a corollary to the basic introduction to polymers in their solid state, this chapter deals with partially crystalline polymers. To begin, we need to ask ourselves which polymers are able to crystallize.
边缘带来墨水
发表于 2025-3-26 01:10:41
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思想流动
发表于 2025-3-26 04:18:52
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全部逛商店
发表于 2025-3-26 11:51:07
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AWRY
发表于 2025-3-26 14:58:18
Mechanical and rheological testing,Mechanical and rheological testing of polymers or polymer compounds needs to be carried out for a number of reasons. These include:
GRILL
发表于 2025-3-26 20:23:03
Chromatographic methods,Since the early 1940s and the pioneering work of Martin and Synge, chromatographic techniques have played a major role in helping the analyst to solve problems.