Custom Particles?

I've been trying to make the transparency of custom particles fade away on death. They emit properly and work but the particles transparency won't change. Could someone help me with this?

local particlesHead = game.ServerStorage.HeadParticles
local particlesHeadCopy = particlesHead:clone() -- Head
local particlesLeftArm = game.ServerStorage.LArmParticles
local particlesLeftArmCopy = particlesLeftArm:clone()  -- Left Arm
local particlesRightArm = game.ServerStorage.RArmParticles
local particlesRightArmCopy = particlesRightArm:clone() -- Right Arm
local particlesLeftLeg = game.ServerStorage.LLegParticles
local particlesLeftLegCopy = particlesLeftLeg:clone() -- Left Leg
local particlesRightLeg = game.ServerStorage.RLegParticles 
local particlesRightLegCopy = particlesRightLeg:clone() -- Right Leg
local particlesTorso = game.ServerStorage.TorsoParticles
local particlesTorsoCopy = particlesTorso:clone()       -- Torso


for i = 0,1, .1 do
                    particlesHeadCopy.Transparency = i 
                    particlesTorsoCopy.Transparency = i 
                    particlesLeftArmCopy.Transparency = i 
                    particlesRightArmCopy.Transparency = i 
                    particlesLeftLegCopy.Transparency = i 
                    particlesRightLegCopy.Transparency = i 
                    wait(.5)
                end

Here's a reference: https://gyazo.com/97197a8a6bc77818167dc626d3b18ac2