polymethylene是什么意思
2024-02-01 05:51:17
polymethylene
n. 聚甲烯(环烷烃；聚亚甲基)
例句
- Thermodynamical Properties of Polymethylene Chains Confined in an Infinite Cylinder. 受约聚亚甲基链的热力学性质。
- In this paper, fourth moment of end-to-end distance of polymethylene chains in the third-order interaction approximation is calculated. 本文用三级相互作用近似理论导出了高分子链末端距的四次矩的计算公式。
- It is concluded that the polymethylene is in full extended trans conformation both in the crystalline and in the liquid crystalline phases when the spacer units are longer than 8. 结果表明,芳香共聚酯热致性液晶中液晶基元之间的相互作用很强而柔性间隔链之间的相互作用很弱。柔性间隔链段主要是伸直的反式构象。
- So a rapid drop of molecular weight should be observed at the small dose.This is demonstrated by the result of [17] of irradiated polymethylene terephthalates. 特别是在辐照初期很低剂量范围内;分子量异常地下降.;辐照聚对苯二甲酸二醇酯的粘度测定支持了这一理论结果
- The purpose of polymethylene polyphenyl polyamines purification system is to get rid of anilin and water.The stripping tower and drying tower are two main separation units in the system. 多胺精制系统的任务是脱除粗多胺中的苯胺和水,针对现有工艺存在的精制效果差、消耗高等问题,分别对影响汽提塔和干燥塔的因素进行了模拟分析,提出了相应的改进措施。
- The feasibility of manufacturing rice-straw particleboard was discussed when UF resin or the mixtures of UF resin and polymethylene diphenyldiisocyanate (PMDI) were used as binders. 探讨了以腺醛(UF)胶和以异氰酸酯(PMDI)改性的UF胶制造稻草刨花板的可行性。
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