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1. 发明授权

US09753431B2 Visible light photoinitiating system for preparing high diffraction efficiency hologram optical polymer material 有权
$Visible light photoinitiating system for preparing high diffraction efficiency hologram optical polymer material$
公开(公告)号：US09753431B2
公开(公告)日：2017-09-05
申请号：US14131676
申请日：2012-05-25
申请人： Xiaolin Xie , Haiyan Peng , Xingping Zhou , Chengfu Zheng , Hongwei Ge
发明人： Xiaolin Xie , Haiyan Peng , Xingping Zhou , Chengfu Zheng , Hongwei Ge
IPC分类号： C08F2/52 , C08F2/42 , G03H1/04 , C08F2/50 , G03F7/00 , G03F7/029 , G03F7/031 , G11B7/24044 , G11B7/245 , G03H1/18
CPC分类号： G03H1/04 , C08F2/50 , G03F7/001 , G03F7/029 , G03F7/031 , G03H1/181 , G03H2260/12 , G11B7/24044 , G11B7/245
摘要： The present invention provides a visible light photoinitiating system for preparing a holographic photopolymer material with high-diffraction efficiency. The photoinitiating system comprises a photosensitizer and a co-initiator, and its mechanism is that the photosensitizer transforms from ground state to excited state after absorbing photons, and then interacts with the co-initiator through transfer of electrons and protons, which produces an alkyl (or aryl) free radical R and a ketyl radical K; wherein the free radical R initiates the addition polymerization of monomers that are capable of free radical polymerization, whereas the radical K inhibits the chain propagation of the macromolecular free radicals to a certain degree due to the steric hindrance effect, and thus delays the gelation time of the photopolymerization, which helps to increase the phase separation between the polymer and the functional components. A holographic photopolymer material with high-diffraction efficiency can be obtained by employing this visible light photoinitiating system.

2. 发明申请

US20140193748A1 VISIBLE LIGHT PHOTOINITIATING SYSTEM FOR PREPARING HIGH DIFFRACTION EFFICIENCY HOLOGRAM OPTICAL POLYMER MATERIAL 有权
标题翻译：用于制备高衍射效率的光可见光光聚合物材料的可见光照射系统
公开(公告)号：US20140193748A1
公开(公告)日：2014-07-10
申请号：US14131676
申请日：2012-05-25
申请人： Xiaolin Xie , Haiyan Peng , Xingping Zhou , Chengfu Zheng , Hongwei Ge
发明人： Xiaolin Xie , Haiyan Peng , Xingping Zhou , Chengfu Zheng , Hongwei Ge
IPC分类号： G03H1/04
CPC分类号： G03H1/04 , C08F2/50 , G03F7/001 , G03F7/029 , G03F7/031 , G03H1/181 , G03H2260/12 , G11B7/24044 , G11B7/245
摘要： The present invention provides a visible light photoinitiating system for preparing a holographic photopolymer material with high-diffraction efficiency. The photoinitiating system comprises a photosensitizer and a co-initiator, and its mechanism is that the photosensitizer transforms from ground state to excited state after absorbing photons, and then interacts with the co-initiator through transfer of electrons and protons, which produces an alkyl (or aryl) free radical R and a ketyl radical K; wherein the free radical R initiates the addition polymerization of monomers that are capable of free radical polymerization, whereas the radical K inhibits the chain propagation of the macromolecular free radicals to a certain degree due to the steric hindrance effect, and thus delays the gelation time of the photopolymerization, which helps to increase the phase separation between the polymer and the functional components. A holographic photopolymer material with high-diffraction efficiency can be obtained by employing this visible light photoinitiating system.
摘要翻译：本发明提供了一种制备具有高衍射效率的全息光聚合物材料的可见光光引发体系。光引发剂体系包括光敏剂和共引发剂，其机理是光敏剂在吸收光子后从基态转化为激发态，然后通过电子和质子的转移与共引发剂相互作用，产生烷基（或芳基）自由基R和酮基K; 其中自由基R引发能够进行自由基聚合的单体的加成聚合，而基团K由于空间位阻效应而在一定程度上抑制大分子自由基的链增长，因此延迟了胶束化时间该光聚合有助于增加聚合物和功能组分之间的相分离。可以通过使用该可见光光引发体系获得具有高衍射效率的全息光敏聚合物材料。

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