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1)  rotational isomeric state
旋转异构态
1.
By the rotational isomeric state model and method, the mean-square of gyration < S~2 > for the disubstitutedpolymer chain is introduced, the characteristic ratio of < S~2 > vs.
旋转异构态理论基础上,建立双侧基高分子链均方旋转半径的计算公式,由此得到聚甲基苯乙烯的均方旋转半径特征比与链长的关系,计算结果与实验数值十分一致。
2.
By means of the improved rotational isomeric state model and method, the dependence of mean-square radius of gyration on molecular weight M was estimated (/M) 0.
用改进的旋转异构态模型和计算方法 ,研究聚丙烯链均方回转半径〈S2 〉与分子量 M的关系 ,经计算 (〈S2 〉/M) 0 。
3.
Using the rotational isomeric state theory, the mean square radius of gyration 〈 S 2〉 and its temperature coefficient for the polymer chain with large side groups are derived.
旋转异构态模型的基础上 ,通过导出大侧基高分子链均方回转半径的计算公式 ,计算相应的温度系数 ,并得到无规聚苯乙烯链的温度系数为 - 1 。
2)  rotational isomeric state model
旋转异构态
1.
With the conformational statistical method theory and the improved rotational isomeric state model of large side groups, the mean_square radius of gyration of the symmetrically substituted polymer chain are deduced, by which the flexibility of poly(dimethylsilmethylene) (PDMSM) may be investigated.
应用构象统计方法和改进的侧基旋转异构态模型,推导了对称取代基链的均方回转半径特征比2xl2公式,可研究聚二甲基硅烷链的柔顺性,根据特征比与链长的关系,得到聚二甲基硅烷链长链特征比值094,结果还与聚二甲基硅氧烷链前期计算值作了比较。
3)  three-fold rotational isomeric state
三重旋转异构态
1.
Study of conformational property of a three-fold rotational isomeric state polymer chain model;
三重旋转异构态近似模型的高分子链构象性质的研究
4)  rotational isomeric state model
旋转异构态模型
1.
In this paper,we have calculated intrinsic energy, free energy and entropy of the unperturbed polysilane chain by using the rotational isomeric state model and the second order interaction approximation.
采用旋转异构态模型和二级相互作用近似,计算了无扰Polysilane链的内能、自由能和熵,讨论了它们与链长和温度的关
5)  rotational-isomeric-state(RIS)
旋转异构态(RIS)
6)  rotamers
旋转异构
补充资料:旋转异构
分子式:
CAS号:

性质:指具有相同的分子式,分子中原子的排列也相同,仅由于绕分子内单键的内旋转构象不同而产生的同分异构现象。由于各种旋转异构体的位谷之间的位垒不高,在一般情况下各种异构体可以相互转变,不可能用分离手段分开。

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