聚酯是指大分子主链的重复单元中含有 (-COO-)结构的高聚物的统称,以下聚酯材料的玻璃化转变温度高低顺序正确的是()
A: PEN>PCT>PBN>PET>PTT>PBT
B: PEN>PCT>PBN>PTT>PBT>PET
C: PCT>PBN>PEN>PBT>PET>PTT
D: PEN>PBT>PET>PTT>PCT>PBN
A: PEN>PCT>PBN>PET>PTT>PBT
B: PEN>PCT>PBN>PTT>PBT>PET
C: PCT>PBN>PEN>PBT>PET>PTT
D: PEN>PBT>PET>PTT>PCT>PBN