Lactase
发表于 2025-3-21 16:18:42
书目名称History of Polyolefins影响因子(影响力)<br> http://figure.impactfactor.cn/if/?ISSN=BK0427581<br><br> <br><br>书目名称History of Polyolefins影响因子(影响力)学科排名<br> http://figure.impactfactor.cn/ifr/?ISSN=BK0427581<br><br> <br><br>书目名称History of Polyolefins网络公开度<br> http://figure.impactfactor.cn/at/?ISSN=BK0427581<br><br> <br><br>书目名称History of Polyolefins网络公开度学科排名<br> http://figure.impactfactor.cn/atr/?ISSN=BK0427581<br><br> <br><br>书目名称History of Polyolefins被引频次<br> http://figure.impactfactor.cn/tc/?ISSN=BK0427581<br><br> <br><br>书目名称History of Polyolefins被引频次学科排名<br> http://figure.impactfactor.cn/tcr/?ISSN=BK0427581<br><br> <br><br>书目名称History of Polyolefins年度引用<br> http://figure.impactfactor.cn/ii/?ISSN=BK0427581<br><br> <br><br>书目名称History of Polyolefins年度引用学科排名<br> http://figure.impactfactor.cn/iir/?ISSN=BK0427581<br><br> <br><br>书目名称History of Polyolefins读者反馈<br> http://figure.impactfactor.cn/5y/?ISSN=BK0427581<br><br> <br><br>书目名称History of Polyolefins读者反馈学科排名<br> http://figure.impactfactor.cn/5yr/?ISSN=BK0427581<br><br> <br><br>
歹徒
发表于 2025-3-21 23:41:19
The Discovery of Polyethylene and Its Effect on the Evolution of Polymer Science,he creation of the novel materials necessary for these new technologies to become possible. What is staggering in retrospect, was the rate at which these new materials were created and brought into use. Polyethylene, for example, although first discovered in 1933 was not a reproducible technology un
Tonometry
发表于 2025-3-22 03:15:53
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Affectation
发表于 2025-3-22 08:08:10
Early Polyolefin Synthesis with Ziegler Catalysis,s work began shortly after Hercules Incorporated acquired a license in 1954 to Ziegler’s new organometallic-transition metal compound catalysts for polymerizing ethylene at low pressure and temperature to very high molecular weight, linear polyethylene. The emphasis will be on the author’s independe
squander
发表于 2025-3-22 11:42:00
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暴露他抗议
发表于 2025-3-22 16:33:53
An Overview of Polypropylene Resins,e market place today. From its introduction as a commercial plastic in 1975, it has grown to a 2.92 billion-pound-per-year business in 1979. The growth rate of polypropylene resin will reach 4.19 billion pounds per year by 1985. The rapid growth of polypropylene is due to its versatility, wide appli
挫败
发表于 2025-3-22 18:29:52
History of Helical Structures in Vinyl Polymers,rgy which depends on intramolecular non-bonded interactions. Each chemically regular, linear polymer species has a minimum energy state wherein the torsional angles defining this rotational isomeric state are repeated regularly along the polymer chain. This leads to a helical conformation which is g
Legion
发表于 2025-3-23 00:56:09
,Polyolefin Elastomers — Fifty Years of Progress,o, the scope of this presentation would be exceedingly large. However, for the purpose of this paper we shall use a more restrictive definition and limit ourselves to elastomers made . from monoolefins, either by direct synthesis or by post-polymerization modification of a polyolefin which in itself
带伤害
发表于 2025-3-23 02:47:34
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叙述
发表于 2025-3-23 08:27:11
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