摘要:
Polyester resins (C) of the invention have a practically sufficient high molecular weight and a high crystallinity and have an amide group in the molecular chain. Processes for producing the polyester resins are also disclosed. In detail, the polyester resins (C) have a practically sufficient high molecular weight and a high crystallinity and have a biodegradable amide group in the molecular chain. Processes for producing the polyester resins are also disclosed.The polyester resins (C) are obtained by reacting an aliphatic polyester resin (A) and a polyisocyanate compound (B) in the presence of an amidation catalyst and contain a specific structural unit.
摘要:
The invention provides a piezoelectric polymer material including a helical chiral polymer having a weight average molecular weight of from 50,000 to 1,000,000 and having optical activity, the piezoelectric polymer material having a piezoelectric constant d14 at 25° C. of 10 pC/N or more, a degree of crystallinity obtained by X-ray diffraction of from 40% to 80%, and a haze of from 0.5 to 30.
摘要:
Disclosed is a polymerizable composition containing a compound represented by the following general formula (1), wherein, in the formula, M represents P, P═O or P═S; X1 and X2 each independently represent a sulfur atom or an oxygen atom; R1 represents a divalent organic group; m represents 0 or an integer of not less than 1; n represents an integer of not less than 1 but not more than 3; p and q represent (1, 0) or (0, 1); and Y represents an inorganic or organic residue.
摘要:
A polymerizable composition including a compound represented by the following formula (1) and elemental sulfur. (In the following formula (1), M represents a metal atom; X1 and X2 each independently represent a sulfur atom or an oxygen atom; R1 represents a divalent organic group; m represents an integer of 0 or 1 or more; p represents an integer of 1 or more and n or less; n represents the valency of the metal atom M; Y each independently represent an inorganic or organic residue; and when n−p is 2 or more, Y's may bind to each other to form a ring containing the metal atom M.)
摘要:
The invention provides a piezoelectric polymer material including a helical chiral polymer having a weight average molecular weight of from 50,000 to 1,000,000 and having optical activity, the piezoelectric polymer material having a piezoelectric constant d14 at 25° C. of 10 pC/N or more, a degree of crystallinity obtained by X-ray diffraction of from 40% to 80%, and a haze of from 0.5 to 30.
摘要:
A polymerizable composition including a compound represented by following General Formula (1): (in Formula (1), M represents a metal atom; X1 and X2 each independently represents a sulfur atom or an oxygen atom; R1 represents a divalent organic group; m represents an integer of 0 or 1 or greater; p represents an integer of 1 to n; n represents a valence of a metal atom M; and Y's each independently represents an inorganic or organic residue, where when n−p is 2 or greater, Y's may be bonded to each other to form a ring containing a metal atom M), a thiol compound and an episulfide compound.
摘要翻译:一种包含由以下通式(1)表示的化合物的可聚合组合物:(式(1)中,M表示金属原子; X1和X2各自独立地表示硫原子或氧原子; R1表示二价有机基团; m 表示0或1以上的整数,p表示1〜n的整数,n表示金属原子M的化合价,Y表示各自独立地表示无机或有机残基,np为2以上时,Y可以 彼此键合形成含有金属原子M),硫醇化合物和环硫化合物的环。
摘要:
Disclosed are a biodegradable resin composition comprising a copolymer (A) with a weight average molecular weight of 1,000 to 30,000, which comprises a constituent unit (a-1) derived from a multivalent carboxylic acid except for an amino acid and a constituent unit (a-2) derived from a hydroxycarboxylic acid, and a biodegradable resin (B), which has excellent hydrolyzability and excellent transparency; and a biodegradable molded article composed of this biodegradable resin composition.
摘要:
A polymerizable composition including a compound represented by following General Formula (1): (in Formula (1), M represents a metal atom; X1 and X2 each independently represents a sulfur atom or an oxygen atom; R1 represents a divalent organic group; m represents an integer of 0 or 1 or greater; p represents an integer of 1 to n; n represents a valence of a metal atom M; and Y's each independently represents an inorganic or organic residue, where when n−p is 2 or greater, Y's may be bonded to each other to form a ring containing a metal atom M), a thiol compound and an episulfide compound.
摘要翻译:一种包含由以下通式(1)表示的化合物的可聚合组合物:(式(1)中,M表示金属原子; X1和X2各自独立地表示硫原子或氧原子; R1表示二价有机基团; m 表示0或1或更大的整数; p表示1至n的整数; n表示金属原子M的价数; Y各自独立地表示无机或有机残基,其中当n-p为2或更大时, Y可以彼此键合形成含有金属原子M),硫醇化合物和环硫化合物的环。
摘要:
The invention provides a polylactic acid-based resin having a high molecular weight, high heat resistance and an amide bond in its molecular chain, a production process and a use thereof. The polylactic acid-based resin comprises a constituting unit represented by the following formula (1) and which is obtained by allowing a polyisocyanate compound to react with a mixture comprising at least a poly (L-lactic acid) in which the percentage of the terminal functional group which is a carboxyl group exceeds 50% and a poly (D-lactic acid) in which the percentage of the terminal functional group which is a carboxyl group exceeds 50%. (in the formula (1), R is a polyisocyanate residue and represents an aliphatic hydrocarbon group having 1 to 20 carbon atoms, a hydrocarbon group having an alicyclic structure and 3 to 20 carbon atoms or a hydrocarbon group having an aromatic ring and 6 to 20 carbon atoms.)
摘要:
A polymerizable composition including a compound represented by following General Formula (1): (in Formula (1), M represents a metal atom; X1 and X2 each independently represents a sulfur atom or an oxygen atom; R1 represents a divalent organic group; m represents an integer of 0 or 1 or greater; p represents an integer of 1 to n; n represents a valence of a metal atom M; and Y's each independently represents an inorganic or organic residue, where when n-p is 2 or greater, Y's may be bonded to each other to form a ring containing a metal atom M), and a thiol compound.
摘要翻译:一种包含由以下通式(1)表示的化合物的可聚合组合物:(式(1)中,M表示金属原子; X1和X2各自独立地表示硫原子或氧原子; R1表示二价有机基团; m 表示0或1以上的整数,p表示1〜n的整数,n表示金属原子M的化合价,Y表示各自独立地表示无机或有机残基,np为2以上时,Y可以 彼此键合形成含有金属原子M的环)和硫醇化合物。