公开(公告)号：US10968303B2

公开(公告)日：2021-04-06

申请号：US15756256

申请日：2016-08-29

申请人： Matthew L. Becker ,  Andrew P. Dove ,  Vinh X. Truong ,  Craig A. Bell ,  Ian A. Barker ,  Jiayi Yu

发明人： Matthew L. Becker ,  Andrew P. Dove ,  Vinh X. Truong ,  Craig A. Bell ,  Ian A. Barker ,  Jiayi Yu

IPC分类号： C08G75/045 ,  C08F238/00 ,  C08F2/46 ,  C08F4/609

摘要： In various embodiments, the present invention provides a strong, synthetic elastomer materials (and related methods for making same) with mechanical properties that are controlled by the stereochemically-defined double bonds within their backbone, yet have physical properties that are derived from monomer selection and defined, modifiable, chain end groups. The use of the organocatalyzed, stereospecific addition of thiols to activated alkynes, affords isolated high molar mass materials (>100 kDa) via step-growth polymerization with high levels of cis- or trans-double bond content. Furthermore, in various aspects of the present invention, it has been found that changing the monomer composition and chain end groups provides additional control over the materials' physical properties to provide more efficient compounding with polar additives. Using this approach to elastomer synthesis, further end group modification and toughening through various vulcanization strategies are also possible.

公开(公告)号：US20180244821A1

公开(公告)日：2018-08-30

申请号：US15756256

申请日：2016-08-29

申请人： Matthew L. Becker ,  Andrew P. Dove ,  Vinh X. Truong ,  Craig A. Bell ,  Ian A. Barker ,  Jiayi Yu

发明人： Matthew L. Becker ,  Andrew P. Dove ,  Vinh X. Truong ,  Craig A. Bell ,  Ian A. Barker ,  Jiayi Yu

IPC分类号： C08F238/00 ,  C08F2/46 ,  C08F4/609

CPC分类号： C08F238/00 ,  C08F2/46 ,  C08F4/6095 ,  C08F2500/01 ,  C08F2500/04 ,  C08F2500/21 ,  C08F228/02

摘要： In various embodiments, the present invention provides a strong, synthetic elastomer materials (and related methods for making same) with mechanical properties that are controlled by the stereochemically-defined double bonds within their backbone, yet have physical properties that are derived from monomer selection and defined, modifiable, chain end groups. The use of the organocatalyzed, stereospecific addition of thiols to activated alkynes, affords isolated high molar mass materials (>100 kDa) via step-growth polymerization with high levels of cis- or trans-double bond content. Furthermore, in various aspects of the present invention, it has been found that changing the monomer composition and chain end groups provides additional control over the materials' physical properties to provide more efficient compounding with polar additives. Using this approach to elastomer synthesis, further end group modification and toughening through various vulcanization strategies are also possible.