Modeling of Glass Transition Temperatures for Polymeric Coating Materials: Application of QSPR Mixture‐based Approach

Modeling of Glass Transition Temperatures for Polymeric Coating Materials: Application of QSPR Mixture‐based Approach
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聚合物涂层材料的玻璃化转变温度建模:基于 QSPR 混合物的方法的应用

DOI:
10.1002/minf.201800150
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发表时间:
2019
影响因子:
3.6
通讯作者:
Rasulev, Bakhtiyor
Rasulev, Bakhtiyor
中科院分区:
医学4区
文献类型:
--
作者:
Petrosyan, Lyudvig S.;Sizochenko, Natalia;Leszczynski, Jerzy;Rasulev, Bakhtiyor

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交联嵌段共聚物结构复杂,在化学信息学中利用传统的分子表示方法仅具有有限的适用性。因此,我们介绍了嵌段共聚物结构表征的新技术。我们开发了添加剂和组合的方法,处理共聚物作为一个混合物系统。在这种方法中,DRAGON描述符对反应混合物中的所有化学品进行浓度加权。作为概念的证明,我们研究了羟烷基-和二羟烷基氨基甲酸酯封端的聚(二甲基硅氧烷)低聚物与聚(-己内酯)的嵌段共聚物的玻璃化转变温度,并开发了四个定量结构-性质关系(QSPR)模型。所述QSPR模型的相关系数(R2)对于训练集在0.851至0.911之间。除了新引入的技术之外,我们发现辛醇-水分配系数和莫尔斯未加权描述符是研究性质的最重要描述符。研究结果表明,反应混合物中的所有化学物质都会影响玻璃化转变温度。
Cross‐linked block copolymers are structurally complex, and utilization of traditional methods of molecular representation in chemoinformatics is only of limited applicability. Therefore, we introduced new techniques of structural representation for block copolymers. We developed additive and combinatorial approaches that treat a copolymer as a mixture system. In this approach, DRAGON descriptors are concentration‐weighted for all chemicals in the reaction mixture. As a proof of concept, we have studied glass transition temperatures of block copolymers of hydroxyalkyl‐ and dihydroxyalkyl carbamate terminated poly(dimethylsiloxane) oligomers with poly(‐caprolactone) and developed four quantitative structure‐property relationships (QSPR) models. The correlation coefficient (R2) for mentioned QSPR models ranges from 0.851 to 0.911 for the training set. In addition to the newly introduced technique we found that the octanol−water partition coefficient and 3D‐MoRSE unweighted descriptors were the most important descriptors for the studied property. The results of the study demonstrated that all chemicals in reaction mixture influenced the glass transition temperatures.
用于转基因表达的氨基糖苷衍生脂质聚合物的平行合成和定量构效关系 (QSAR) 建模。
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