Halogen bonding (XB) was used to drive aggregation-induced emission enhancement (AIEE) and crosslink-enhanced emission (CEE) in a concurrent manner. Weak luminophores and vinyl monomers were cocrystallized via XB to drive AIEE, the obtained monomer cocrystal solids were subsequently polymerized via free-radical solid-phase polymerization (SPP) to drive CEE. Weak luminophores containing bromine (Br) and vinyl monomers containing nitrogen (N) or oxygen (O) were combined to form XB-based monomer cocrystals (Br⋯N and Br⋯O bonds), which exhibited AIEE, and the subsequent polymerization of the obtained cocrystals enabled the weak luminophores to be incorporated into the polymer matrix. The resultant restriction of the vibrational and rotational motions of the luminophores led to CEE. The obtained luminophore-embedded emissive sheets exhibited stimuli-responsiveness to temperatures, pH, and solvents, and served as stimuli-responsive emissive polymers. The sheets also served as host–guest interactive materials.

中文翻译：

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通过卤素键辅助共结晶和自由基固相聚合驱动的双重聚集诱导发射增强 (AIEE) 和交联增强发射 (CEE)


卤素键合（XB）用于同时驱动聚集诱导发射增强（AIEE）和交联增强发射（CEE）。弱发光团和乙烯基单体通过XB共结晶以驱动AIEE，获得的单体共晶固体随后通过自由基固相聚合(SPP)聚合以驱动CEE。含溴（Br）的弱发光体与含氮（N）或氧（O）的乙烯基单体结合形成XB基单体共晶（Br⋯N和Br⋯O键），表现出AIEE，随后聚合获得的共晶体使弱发光团能够掺入聚合物基质中。由此产生的对发光体振动和旋转运动的限制导致了 CEE。所获得的嵌入发光体的发射片表现出对温度、pH和溶剂的刺激响应性，并用作刺激响应发射聚合物。这些床单还可以作为主宾互动材料。