Independent Control of Elastomer Properties through Stereocontrolled Synthesis
Independent Control of Elastomer Properties through Stereocontrolled Synthesis
复制标题
通过立体控制合成独立控制弹性体性能
DOI：
10.1002/ange.201606750
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发表时间：
2016
影响因子：
--
通讯作者：
Bell C
中科院分区：
文献类型：
--
作者：
Bell C
在大多数合成弹性体中，通过选择单体来改变物理性质也会导致材料结晶度的改变，这通过改变其机械性能来表现。采用有机催化立体定向添加巯基到活化的炔烃上，通过步长聚合分离出高摩尔质量弹性体。由此产生的可控双键立体化学定义了结晶度和伴随的机械性能，并使合成的材料能够通过改变单体组成来保持其优异的机械性能。利用这种方法合成弹性体，还可以通过硫化策略进行进一步的端基改性和增韧。立体化学的有机催化控制为一种新的、易于扩展的弹性体开辟了领域，这种弹性体将具有独特的化学处理功能和合成后处理。
In most synthetic elastomers, changing the physical properties by monomer choice also results in a change to the crystallinity of the material, which manifests through alteration of its mechanical performance. Using organocatalyzed stereospecific additions of thiols to activated alkynes, high‐molar‐mass elastomers were isolated via step‐growth polymerization. The resulting controllable double‐bond stereochemistry defines the crystallinity and the concomitant mechanical properties as well as enabling the synthesis of materials that retain their excellent mechanical properties through changing monomer composition. Using this approach to elastomer synthesis, further end group modification and toughening through vulcanization strategies are also possible. The organocatalytic control of stereochemistry opens the realm to a new and easily scalable class of elastomers that will have unique chemical handles for functionalization and post synthetic processing.
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影响因子：
--
作者：
HORNE, SE;KIEHL, JP;WILLSON, EA
通讯作者：
WILLSON, EA
影响因子：
--
作者：
Harries, C
通讯作者：
Harries, C
影响因子：
--
作者：
STAVELY, FW;DUNBROOK, RF;EBERLY, KC
通讯作者：
EBERLY, KC
影响因子：
15
作者：
TRUCE, WE;SIMMS, JA
通讯作者：
SIMMS, JA
DOI：
10.1016/0030-4220(74)90448-4
发表时间：
1974-01-01
影响因子：
--
作者：
GOODMAN, A;SCHILDER, H;ALDRICH, W
通讯作者：
ALDRICH, W