Periodic structured organic films
a structured organic film and film technology, applied in the direction of polyamide coating, transportation and packaging, coatings, etc., can solve the problem that the nature of polymer chemistry offers poor control over the molecular-level structure of formed materials
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example 1
Type 2 SOF
[0151](Action A) Preparation of the Liquid Containing Reaction Mixture.
[0152]The following were combined: the building block benzene-1,4-dimethanol [segment=p-xylyl; Fg=hydroxyl (—OH); (0.47 g, 3.4 mmol)] and a second building block N4,N4,N4′,N4′-tetrakis(4-(methoxymethyl)phenyl)biphenyl-4,4′-diamine [segment=N4,N4,N4′,N4′-tetra-p-tolylbiphenyl-4,4′-diamine; Fg=methoxy ether (—OCH3); (1.12 g, 1.7 mmol)], and 17.9 g of 1-methoxy-2-propanol. The mixture was shaken and heated to 60° C. until a homogenous solution resulted. Upon cooling to room temperature, the solution was filtered through a 0.45 micron PTFE membrane. To the filtered solution was added an acid catalyst delivered as 0.31 g of a 10 wt % solution of p-toluenesulfonic acid in 1-methoxy-2-propanol to yield the liquid containing reaction mixture.
[0153](Action B) Deposition of Reaction Mixture as a Wet Film.
[0154]The reaction mixture was applied to the reflective side of a metalized (TiZr) MYLAR™ substrate using a c...
example 2
Control Experiment Wherein the Building Block Benzene-1,4-Dimethanol was not Included
[0162](Action A) Preparation of the Liquid Containing Reaction Mixture.
[0163]The following were combined: the building block N4,N4,N4′,N4′-tetrakis(4-(methoxymethyl)phenyl)biphenyl-4,4′-diamine [segment=N4,N4,N4′,N4′-tetra-p-tolylbiphenyl-4,4′-diamine; Fg=methoxy ether (—OCH3); (1.12 g, 1.7 mmol)], and 17.9 g of 1-methoxy-2-propanol. The mixture was shaken and heated to 60° C. until a homogenous solution resulted. Upon cooling to room temperature, the solution was filtered through a 0.45 micron PTFE membrane. To the filtered solution was added an acid catalyst delivered as 0.31 g of a 10 wt % solution of p-toluenesulfonic acid in 1-methoxy-2-propanol to yield the liquid containing reaction mixture.
[0164](Action B) Deposition of Reaction Mixture as a Wet Film.
[0165]The reaction mixture was applied to the reflective side of a metalized (TiZr) MYLAR™ substrate using a constant velocity draw down coater...
example 3
(Control Experiment Wherein the Building Block N4,N4,N4′,N4′-Tetrakis(4-(Methoxymethyl)Phenyl)Biphenyl-4,4′-Diamine was not Included)
[0168](Action A) Preparation of the Liquid Containing Reaction Mixture.
[0169]The following were combined: the building block benzene-1,4-dimethanol [segment=p-xylyl; Fg=hydroxyl (—OH); (0.47 g, 3.4 mmol)] and 17.9 g of 1-methoxy-2-propanol. The mixture was shaken and heated to 60° C. until a homogenous solution resulted. Upon cooling to room temperature, the solution was filtered through a 0.45 micron PTFE membrane. To the filtered solution was added an acid catalyst delivered as 0.31 g of a 10 wt % solution of p-toluenesulfonic acid in 1-methoxy-2-propanol to yield the liquid containing reaction mixture.
[0170](Action B) Deposition of Reaction Mixture as a Wet Film.
[0171]The reaction mixture was applied to the reflective side of a metalized (TiZr) MYLAR™ substrate using a constant velocity draw down coater outfitted with a bird bar having an 8 mil gap....
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