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	<title>顺丁橡胶 &#8211; 答案星辰</title>
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		<title>顺丁橡胶（结构规整的合成橡胶）</title>
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		<pubDate>Fri, 19 May 2023 10:08:19 +0000</pubDate>
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		<category><![CDATA[顺丁橡胶]]></category>

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		<description><![CDATA[顺丁橡胶结构规整的合成橡胶 顺丁橡胶是顺式1,4-聚丁二烯橡胶的简称,其分子式为（C4H6）n,属混合物,国际通用代号为BR,根据顺丁橡胶顺式结构的含量分为高顺丁橡胶（顺式结构占97%～99%）、中顺丁橡胶（顺式结构占90%～95%）和低顺丁橡胶（顺式结构占32%～40%）三种。 [&#8230;]]]></description>
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