申请人:TECHNISCHE UNIVERSITEIT EINDHOVEN
公开号:US20150018467A1
公开(公告)日:2015-01-15
A compound or a combination of compounds for crystallization of poly-hydroxy-alkanoate (PHA), poly-lactic acid (PLA) or combinations thereof, wherein each of the compounds has a core motif with two oxalamide motifs, flanked by two arms, wherein the core motif has the formula: R—NH—C(O)—C(O)—NH—(CH
2
)
n
—NH—C(O)—C(O)—NH—R′, wherein n ranges from 1 to 10 and the arms R and R′ are each independently chosen from: (i) H; (ii) an alkyl group with a total number of carbon atoms between 1 and 20; (iii) an aromatic ring; or (iv) an ester group, for example —X-Ester-Y, or —X-Ester-X-Ester-Y, wherein X is a saturated aliphatic hydrocarbon group having 1 to 20 carbon atoms, Y is chosen from H, an alkyl group with a total number of carbon atoms ranging from 1 and 20 or an aromatic ring. Also described are processes for the crystallization of poly-hydroxy-alkanoate, poly-lactic acid, or combinations thereof.
一种用于结晶聚羟基烷酸酯(PHA)、聚乳酸(PLA)或其组合物的化合物或化合物组合物,其中每个化合物具有两个草酰胺基团的核心基序,被两个臂所夹,其中核心基序的公式为:R—NH—C(O)—C(O)—NH—(CH2)n—NH—C(O)—C(O)—NH—R′,其中n的范围为1到10,臂R和R′各自独立选择自:(i)H;(ii)总碳原子数在1到20之间的烷基;(iii)芳香环;或(iv)酯基,例如—X-酯-Y,或—X-酯-X-酯-Y,其中X是具有1到20个碳原子的饱和脂肪族烃基,Y选择自H,总碳原子数在1到20之间的烷基或芳香环。还描述了聚羟基烷酸酯、聚乳酸或其组合物的结晶过程。