Co-crystallizable diacetylenic monomer compositions, crystal phases and mixtures, and related methods

A solid monomer composition comprising a first monomer and a second monomer, each said monomer having the formula:

• CH3(CH2)m1NHCONH(CH2)(—C≡C—)2(CH2)NHCONH(CH2)m5CH3;
• wherein:
• in the first monomer m1 and m5 are both 1;
• in the second monomer m1 and m5 are both 2;
• the solid monomer composition can exhibit an X-ray powder diffraction spectrum collected using CuKα1 radiation, the diffraction spectrum having two reflection peaks between a d spacing of about 4.40 Å and a d spacing of about 3.95 Å;
• the two reflection peaks comprise a long spacing peak at a d spacing in the range of from about 4.43 Å to about 4.37 Å, and a short spacing peak at a d spacing in the range of from about 3.99 Å to about 3.92 Å;
• and
• the monomer composition is thermally polymerizable to have a changed visual appearance.

A thermally polymerizable co-crystallized solid monomer composition comprising a first monomer and a second monomer each said monomer having the formula:

• CH3(CH2)m1NHCONH(CH2)(—C≡C—)2(CH2)NHCONH(CH2)m5CH3,
• wherein
• in the first monomer m1 and m5 are both 1;
• in the second monomer m1 and m5 are both 2;
• the X-ray powder diffraction spectrum comprises a longest spacing peak and a second longest spacing peak;
• the longest and second longest spacing peaks are essentially singlets;
• and the second longest spacing peak is at a d spacing of about half the d spacing of the longest spacing peak.

A solid monomer composition comprising a first monomer and a second monomer, each said monomer having the formula:

• CH3(CH2)m1NHCONH(CH2)(—C≡C—)2(CH2)NHCONH(CH2)m5CH3,
• wherein
• in the first monomer, m1 and m5 are both 1;
• in the second monomer, m1 and m5 are both 2;
• the solid monomer composition is polymerizable in the solid state to provide a polymer product capable of exhibiting four different 13C chemical shifts for sp carbon atoms when characterized using cross-polarization magic angle solid state NMR;
• and
• the polymer product has a changed visual appearance from the solid monomer composition.

A co-crystallized solid monomer composition comprising a first monomer and a second monomer, each said monomer having the formula:

• CH3(CH2)m1NHCONH(CH2)m2(—C≡C—)m3(CH2)m4NHCONH(CH2)m5CH3;
• wherein
• m1 is 0 or is a positive integer in the range of from 1 to about 17,
• m2 is a positive integer in the range of from 1 to about 10,
• m3 is a positive integer in the range of from 2 to 4,
• m4 is a positive integer in the range of from 1 to about 10, and
• m5 is 0 or is a positive integer in the range of from 1 to about 17;
• in the first monomer and the second monomer m2, m3, and m4 are the same integer;
• at least one of m1 and m5 in the first monomer differs by one, and by not more than one, from m1 or m5, respectively, in the second monomer;
• the monomer composition comprises a crystal phase capable of polymerizing in monomer stacks generally in one crystal direction;
• and
• at least one of the monomer stacks comprises a mixture of molecules of the first monomer and the second monomer.

A crystal phase composition comprising a first crystal phase and a second crystal phase, wherein the first crystal phase comprises at least about 20 weight percent of a first monomer, the balance consisting essentially of a second monomer, and the second crystal phase comprises at least about 20 weight percent of the second monomer, the balance consisting essentially of the first monomer and wherein the first monomer and the second monomer have differing molecular structures of formula:

• CH3(CH2)m1NHCONH(CH2)m2(—C≡C—)m3(CH2)m4NHCONH(CH2)m5CH3;
• wherein
• m1 is 0 or is a positive integer in the range of from 1 to about 17,
• m2 is a positive integer in the range of from 1 to about 10,
• m3 is a positive integer in the range of from 2 to 4,
• m4 is a positive integer in the range of from 1 to about 10, and
• m5 is 0 or is a positive integer in the range of from 1 to about 17;
• in each of the two monomers m2, m3, and m4 are the same integer;
• and
• at least one of m1 and m5 in the first monomer differs by one and by not more than one from m1 or m5, respectively, in the second monomer.

A copolymer composition including a copolymer chain comprising a first monomer unit and a second monomer unit, each said monomer unit having the following formula before polymerization:

• CH3(CH2)m1NHCONH(CH2)m2(—C≡C—)m3(CH2)m4NHCONH(CH2)m5CH3;
• wherein
• m1 is 0 or is a positive integer in the range of from 1 to about 17;
• m2 is a positive integer in the range of from 1 to about 10;
• m3 is a positive integer in the range of from 2 to 4;
• m4 is a positive integer in the range of from 1 to about 10;
• and
• m5 is 0 or is a positive integer in the range of from 1 to about 17;
• in the first and the second monomers, m2, m3, and m4 are the same integer;
• and
• at least one of m1 and m5 in the first monomer differs by one and by not more than one from m1 or m5, respectively in the second monomer.