发明名称 |
POLYMERIC MATERIALS WITH RESPONSIVE ADHESION AND/OR MECHANICAL PROPERTIES |
摘要 |
Methods of adjusting the mechanical properties of a polymeric material may include forming a polymer network having a plurality of permanent cross-links and coupled to a plurality of reversible cross-links, wherein the polymer network has a shear storage modulus of greater than about 4×104 Pa; and heating the polymer network using a heat source to dissociate the reversible cross-links, wherein heating the polymer network reduces the shear storage modulus to less than about 4×104 Pa. In some embodiments, a polymeric material may include a polymer network comprising a plurality of permanent cross-links and coupled to a plurality of reversible cross-links that are dissociable with the application of a stimulus and associable with the removal of the stimulus, wherein the shear storage modulus of the polymer network is less than about 4×104 Pa in the presence of the stimulus and greater than about 4×104 Pa in the absence of the stimulus. |
申请公布号 |
US2015376304(A1) |
申请公布日期 |
2015.12.31 |
申请号 |
US201414318736 |
申请日期 |
2014.06.30 |
申请人 |
U.S. Army Research Laboratory ATTN: RDRL-LOC-I |
发明人 |
Mrozek Randy A.;Lenhart Joseph L.;Berg Michael C. |
分类号 |
C08F22/06;C08F8/00 |
主分类号 |
C08F22/06 |
代理机构 |
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代理人 |
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主权项 |
1. A method of adjusting the mechanical properties of a polymeric material, comprising:
forming a polymer network having a plurality of permanent cross-links and coupled to a plurality of reversible cross-links, wherein the polymer network has a shear storage modulus of greater than about 4×104 Pa; and heating the polymer network using a heat source to dissociate the reversible cross-links, wherein heating the polymer network reduces the shear storage modulus to less than about 4×104 Pa. |
地址 |
Adelphi MD US |